Dr. Venkatathri Narayanan
Senior Research Associate
Department of Chemistry,
College of Engineering,
Anna University, Chennai 600 025,
Tamil Nadu, India.
E-mail: venkatathrin@yahoo.com
Web site: http:\\venkatathri.tripod.com
http:\\venkatathri.blogstot.com
Tel: +91-44-22203150
Fax: +91-44-22200660
Mobile: +91-9486565702
Aspiration:
To pursue employment in frontier areas of Catalysis, especially in the field of Synthesis, characterization and catalytic properties of novel molecular sieves.
Technical Interest
* Synthesis, characterizartion and catalytic properties of Metal containing and metal free Zeolite type molecular sieves.
*Synthesis, characterization and catalytic studies of mesoporous materials.
*Characterization and catalytic properties of Clays (Chinaclay, metakaolin, Bentonite).
*Synthesis and characterization of silica nanospheres, hollow nanospheres and hollow cuboids.
*Synthesis of polystyrene nanospheres.
*Synthesis of carbon nanotubes.
Education
Ph.D. Degree in Catalysis, Catalysis division, National Chemical Laboratory, Pune 411 008, India, 1992-1997
Thesis: "Synthesis, Characterization and Catalytic properties of AlPO and VAPO molecular sieves with different pore characteristics" Project sponsored by Indo-French Council for Advanced Research (IFCAR)
(Published 25 papers in various National and International journals with 10 patents)
Thesis adviser: Dr. S. Sivasanker
M.Phil. Degree in Physical Chemistry, Department of Physical Chemistry, University of Madras, Madras 600 025, India, 1990-1991
Thesis: Electrochemical analysis of Interaction of Mercury with Dicarboxylic acids
(Thesis graded as highly commended)
M.Sc. Degree in Applied Chemistry, Department of Chemistry, Gandhigram Rural Institute (Deemed University), Gandhigram, 624 302, India, 1998-1990.
Dissertation: Mode of cooling the human body and effect of various Talcum powders
(70%, University Gold medallist, Distinction with First class)
B.Sc. Degree in Chemistry (with Mathematics and Physics as Ancillary Subjects)
Sacred Heart College (University of Madras, Madras), Tirupattur, 1985-1988
(67.5%, Class First rank with First class)
Higher Secondary Certificate Examination (HSC), Tamil Nadu State Board
Government Higher Secondary School, Adamangalam, 1985
(60%, First class)
Secondary School Leaving Certificate Examination (SSLC), Tamil Nadu State Board
Government Higher Secondary School, Kadaladi, 1983
(70%, Class First rank with First class)
Honours and Awards
*S.S. Bhatnagar Award (Scientist of the Year 2008 (chemical Sciences)), CSIR, New Delhi, India (Nominated, I am thankful to Honourable Vice chancellor - Professor D. Viswanathan, , Anna University, Chennai 600 025, Tamil Nadu, India for Nomination).
*Senior Research Associate (Assistant Professor grade, Scientist Pool Scheme) Award, CSIR, New Delhi, India, (February 2007-till date).
*Brain Pool program Award (Visiting Professor), Seoul, South Korea (December 2005 – November 2006).
*Yung Scientist Award (Senior Lecturer grade, Department of Science and Technology, New Delhi), (May 2005 to November 2005).
*CSIR-Research Associate Award, New Delhi (Senior Lecturer grade, February 2001 – April 2005).
*Research Associate – Ashapura Mine Chem. Ltd., Navi Mumbai (September 1998 – November 1998).
*CNRS- Post doctorate Award, Lyon, France (February 1998 – January 2001).
*Research Associate – Ashapura Mine Chem. Ltd., Navi Mumbai (September 1998 – November 1998).
*Qualified the National Eligibility Test (NET, CSIR – UGC, June 1992) under CSIR category (Lecturer grade, March 1993 – January 1998).
*Qualified the Graduate Aptitude Test in Engineering (GATE – 92) (January 1992 – February 1993).
*Best presentation award, 11th National Symbosium on Catalysis, Bhabha Atomic Research Center, Mumbai, India, 1995.
*National Chemical Laboratory Gold Medal for US Patent grant, 2006.
*College Annual day, Elocution competition, First prize, December 1984 .
Member of Editorial Board
*Consultancy Editor, Journal of Ultra Chemistry, Bhopal, India.
*Member, Current world environment, New Delhi, India.
Projects handled
S.No.
Funding agency
Role
Topic
period
Cost (Rs.)
1.
Department of Science and Technology, New Delhi.
Principle Investigator
Efficient and improved process for the synthesis of industrially important environment friendly catalyst, SAPO-35
20-05-05 to 31-11-05
10,44,000/-
Professional recognitions
1.Dr. N. Venkatathri, VIP category, Marquis Who’s Who of world, 890 Mountain avenue, Suite 300, New Providence, New Jercy, USA 09974 908-673-1001.
2.Dr. N. Venkatathri, Naymz, Search for world reputable professionals, USA.
Additional Skills and Knowledge Acquired
*Bachler degree in Education (B.Ed)
Passed in a one year degree course on Education at Annamalai University, Annamalai Nagar on 1993.
*Passed in Type writing English Higher Examination on November 1986.
*Passed in Type writing Tamil Higher Examination on November 1987.
*Passed ‘B’ certificate in NCC (National Cadet Corps, 1987).
*Diploma in Hindi, Central Hindi Directorate, New Delhi, 1987.
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Countries Visited
*France
*Singapore
*South Korea
Fellowships received
*Junior Research Fellow (JRF) (06-03-92 to 31-02-93, Salary = Rs. 1,800/- per month, "Dimethyl dioxiranes: Selectivity in the Reactions with Heterocyclics, Aromatics and Hetero aromatics, Stereochemistry and Mechanisms", (Department of Chemistry. Bharathidasan University, Tiruchirapalli 620 024, Tamil Nadu, India), Department of Science and Technology (DST), New Delhi, India).
*Junior Research Fellow (JRF) (02-03-93 to 01-03-95, salary = Rs. 2,950/- per month, Synthesis , characterization and catalytic properties of AlPO and VAPO molecular sieves with different pore characteristics, (Catalysis division, National Chemical Laboratory, Pune 411 008, India), Council of Scientific Industrial Research (CSIR), New Delhi, India)
*Senior Research Fellow (SRF, Lecturer grade) (02-03-95 to 04-02-98, salary = Rs. 3,400/- per month) Synthesis, characterization and catalytic properties of various AlPO and VAPO molecular sieves with different pore characteristics, (Catalysis division, NCL, Pune 411 008, India), CSIR, New Delhi, India)
*Post Doctoral Research Fellow (PDF)(06-02-98 to 31-01-01, salary = 10,000 FF per month, Synthesis and characterization of various nanosized molecular sieves, (Institut de Recherches sur la Catalyse, 2 Albert Einstein avenue, 69626 Villeurbanne cedex, Lyon, France), Centre National de Recherche Scientifique (CNRS), Paris, France)
*Research Associate (RA, 25-09-1998 to 30-11-98, salary = 15,000/- per month, Characterization and catalytic properties of various naturally occurring clays, R & D center, Ashapura Minchem Ltd., NaviMumbai 400 614, India).
*Research Associate (RA) (Senior Lecturer grade, 05-02-2001 to 10-04-05, salary = 15,000/- per month, n-alkane hydroisomerization over various molecular sieves, (Catalysis division, NCL, Pune 411 008, India), CSIR, New Delhi, India)
*Young Scientist (Senior Lecturer grade, 20-05-05 to 31-11-05, salary = Rs. 20,000/- per month, Department of Science and Technology, New Delhi, India, "Efficient and improved process for the synthesis of industrially important environment friendly catalyst, SAPO-35", (Catalysis division, National Chemical Laboratory, Pune 411 008, Maharastra, India).
*Visiting Professor (Brain Pool Program, 01-12-05 to 30-11-2006, salary = 3,500 US $ per month, "Hollow silica nanosphere and Hydrogen production without elimination of CO2", Composite Materials Center, Korea Institute of Ceramic Engineering & Technology, 233-5, Gasan-Dong, Guemcheon-Gu, Seoul, 153-801, South Korea).
*Senior Research Associate (Assistant Professor grade, Scientists Pool Scheme, 21-02-07 to till date, salary = Rs. 27,000/- per month "Synthesis of different hollow nano silica and introduction of catalytic active centers in silica hollow nanocuboids", Department of Chemistry, Anna university, Chennai 600 025, Tamil Nadu, India).
Teaching Experience
*Senior Research Associate, (Assistant Professor Grade, For classes B.E./B.Tech, and M.Sc. in Practicals (14 hours per week) and theory (3 hours per week) in Chemistry and Ph.D. coursework in catalysis, February 2007 to till date, Department of chemistry, Anna University, Chennai 600 025, Tamil Nadu, India.)
*Research Associate, (Senior Lecturer Grade, Lecturer Grade, For class Ph.D. Course work in catalysis in Catalysis division, National Chemical Laboratory, Pune 411 008, from 05-02-01 to 30-11-05)
*Senior Research Fellow (Lecturer Grade, for class M.Sc. Physical chemistry, Department of Chemistry, Pune University, Pune 411 007, India) From 02-03-95 to 31-01-98.
*Lecturer, (For classes B.Sc, and 12th Standard Chemistry, Part time, September 1990 to December 1991, Kumaran Tutorial College, T. Nagar, Madras)
*Post Graduate Assistant, (For Classes 11 to 12 in Chemistry.December 1992 to May 1993, Government Higher Secondary School, Adamangalam, Tamil Nadu).
Consultant
*Green Trust, Chathuvachari, Vellore – 9, Tamil Nadu, India.
Research Institutions visited
Abroad
*Korea Advanced Institute of Science and Technology, Taejon, South Korea, 2006.
*Korea Institute of Ceramic Engineering and Technology, Seoul, South Korea, 2006.
*Seoul National University, Seoul, South Korea, 2006.
*Univeristy of Lyon-1 Clade, Lyon, France, February 1998.
*Institut de Recherches sur la Catalyse, 69626 Villeurbanne cedex, France, 1998.
*Institute National Science Applications (INSA), 69626 Villeurbanne cedex, France, March 1998.
India
Universities
*Anna University, Chennai, India,2007.
*Pune University, Pune, India, 1993.
*Bharathidasan University, Tiruchirappalli, India, 1992.
*Madurai Kamaraj Univeristy, Madurai, India, 1992.
*Indian Institute of Technology, Madras, India, 1991.
*University of Madras, Madras, India, 600 025, 1990.
*Gandhigram Rural Institute (Deemed University), Gandhigram, India, 1988.
Research Laboratories
*Indian Institute of Petroleum, Dehradun, India, 2007.
*Central Glass and Ceramic Institute, Calcutta, India 2004.
*Central Salt and Marine Chemicals Research Institute, 2003.
*Indian Institute of Chemical Technology, 2003.
*National Physical Laboratory, New Delhi, India 2000.
*Bhabha Atomic Research Center, Bombay, India, 1994.
*National Chemical Laboratory, Pune, 1993.
*Central Leather Institute, Madras, India, 1991.
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Professional Associations
*Member of American Chemical Society (ACS)
*Member of Royal Society of Chemistry (RSC)
*Member of International Zeolite Association (IZA)
*Indian Chemical Society (F/6910, Life member)
*Catalysis Society of India (Life member)
*Material Research Society of India (LM B722, Life member)
Extracarriecular activities
*Regional level drawing competition (January 12, 2007, Referee, Organized by Green trust and Tamil Nadu pollution control board, Don Bosco higher secondary school, Vellore, Tamil Nadu, India.
*Chief Guest, Public Meeting (Arcade, Tamil Nadu, India) "Environmental conservation by friendly methods" organized by Green Trust, Chathuvachari, Vellore, Tamil Nadu, India, 1999.
*Secretary (1993-1997), Tamil Research Scholars welfare club, National Chemical Laboratory, Pune 411 008, India).
*Attended two Univeristy Social Service Camp, 1988-90, Gandhigram Rural Institute (Deemed University), Gandhigram, Tamil Nadu, India.
*Presented Tamil Poem on 15th April 1989 (about seniors), Gandhigram Rural Institute (Deemed University), Gandhigram, Tamil Nadu, India.
*Corporal (1987-88), National Cadet Corps (NCC, 1985-88, Two Annual Training Camps attended, Seshanchavadi, December 1996 and Perundurai, December 1997, Cycle Expedition to 1) Kavalore observatory (80 kms) and 2) kaveripakkam (120 kms), 3) walking to Elagiri hill (40 kms)), Sacred Heart College, Tirupattur, Tamil Nadu, India.
*National Service Scheme (NSS, Camp for 15 days at Puthupattai), Sacred Heart College, Tirupattur, Tamil Nadu, India (1985-1988).
*Secretary (1987-88), Philatelic club (1985-88), Sacred Heart College, Tirupattur, Tamil Nadu, India (conducted a district level exhibition and distributed prizes to the winners, December 1987)
*Participated in Tamil Kaviarangam (presenting self written Tamil poems), 11. January 1986, Organised by Sacred Heart College, Tirupattur, Tamil Nadu, India.
*Participated in Stage Drama, Sacred Heart College, Tirupattur, Tamil Nadu, Indiam 1986.
*Participated in Debate on Love marriage, .Sacred Heart College, Tirupattur, Tamil Nadu, India 1987.
Computer knowledge
*Microsoft Word
*Microsoft Power point
*Microsoft Excel
*Origin
Instrumental Skills
*X-ray diffraction analysis (Rigaku (D/MAX III VC))
*X-ray florescence spectroscopy (Rigaku 3070)
*E-DAX (JEOL JSM 5200)
*Atomic absorption spectroscopy (Shimadzu)
*Integrated coupled plasma analysis (Shimadzu)
*Color flux (Shimadzu)
*Particle size analyzer (Shimadzu)
*Scanning electron micrograph (JEOL JSM 5200)
*Transition electron microscopy (JEOL)
*TG/DTA analysis (Setaram TG-DTA 92)
*C& N analysis (Analyzer)
*TG-MS analysis (Sorbstar 100)
*N2 adsorption (Autosorb – 1)
*Temperature Programmed Desorption (Micromeritics, Autochem 2910)
*Fourier Transform Infra red spectroscopy (Nicolet 60SXB)
*Electron spin resonance spectroscopy (Bruker 200D)
*Ultra violet – visible spectroscopy (Pye Unichem (SP-8-100)
*Massbauer spectroscopy (Austin Science Associates)
*Cyclic voltammetry (Wenking model VSG83, ST72, Bonk Electronics and EG&G Princeton Applied Research (PAR173))
*Polarography (Redelkis OH-105)
*X-ray photoelectron spectroscopy (Vg Scientific, ESCA-II MK3)
*High field suprcon NMRs (200, Bruker MSL 300 and Bruker DRX 500)
*Gas chromatography (HP 5880A) and GC-MS (Shimadzu, model QP2000A)
*Parr reactor, down flow glass reactor and pot reactor
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Detailed research out during the research period
1) Summary of the Research work (21-02-07 to till date)
Synthesize of various shape hollow nanosilica and introduction of catalytic active centers on hollow nanocuboids. In this, several templates and solvents were used by keeping other synthesis constituents as constant. Metals like Ti4+, V5+/V4+, Cr3+ etc. were used to incoporate on silica hollow nanocuboids. Calcined catalyst were used for various type of oxidation reactions.
2) Summary of the Research work (01-12-05 to 30-11-06)
Studies on silica hollow nanosphere synthesis by different new methods were carried out. Besides, about twelve of the reported procedures were reproduced. Cost of the reagent, yield, time were taken as the parameters to choose a method suitable for industrial scale synthesis. Besides UV absorber like 2,2’, 4,4’ tetrahydroxy bensophenone was encapsulated inside the hollow nanosphere by pre and post synthesis modification. Synthesis of novel silica hollow nanocuboids were carried out. Synthesis of polystyrene and influence of reaction parameters were studied.
Production of hydrogen by decomposing methane using Ni supported catalysts were studied. Such a reaction give carbon nanotubes. The materials were characterized by various physicochemical techniques.
3) Summary of the Research work (5-02-2001 to 30-11-2005)
A novel aluminophosphate crystalline phase named as AlPO4-L was found to be a mixture in synthesis of aluminophosphate molecular sieves using hexamethyleneimine irrespective of medium. We elongated the crystallization and isolated the phase as new. Studies reveal that it is short range ordered lamellar type aluminophosphate, organo intercalated clay. Presence of octahedral aluminium confirm the studies. Further we found that template and phosphorous concentration, presence of silicon and ethylene glycol, water and di-n-propylamine, aging period also catalyses respective phases like AlPO4-16, AlPO4-22, SAPO-35, AlPO4-31. Mean while some new aluminophosphates were also deducted (NCL-2 to NCL-15).
Effect of non-aqueous media on synthesis of AlPO4-5, AlPO4-16, AlPO4-22, AlPO4-31, VAPO-31 and SAPO-35 were studied. Studies reveal that ethylene glycol media preferentially substitutes silion in place of phosphorous on aluminophosphate framework. Eventhough it increases the AlPO and SAPO crystallinity, but decreases the VAPO crystallinity. Remaining properties are in similar to aqueous media aluminophosphates. Studies were carried out on aluminosilicates like Mesoporous MCM-41, Microporous ZSM-5, Nanocrystalline ZSM-35, ZSM-35 and Macroporous silicon containing anatase. In this process we also found a new mesoporous aluminosilicate SBA-17 and Vanadium containing hexagonal mesoporous aluminophosphate.
V, Co, Mn, Ti and Mg containing aluminophosphate were synthesized for the first time. Further Cyclic voltammetry was used to characterize vanadium. Inorganic synthetic applications of Hexamethyleneimine, hexamethyltetramine, di-methyl amine, ethylene diamine template were studied.
Electrocatalysis of toluene oxidation using vanadium aluminophosphate modified electrode were carried out. Further various redox type oxidation reactions like benzene hydroxylation, toluene and ethylbenzene oxidation, alkene epoxidation were carried out using newly synthesized molecular sieves. Acid catalysed reactions like heck reaction, methanol to olefin reaction, n-hexane hydroisomerization, aldehyde acetalization, alcohol esterification, amine acylation reactions were also carried out.
4) Summary of the Research work (5-02-08 to 31-01-01)
Studies on synthesis of Nanocrystalline molecular sieves of ZSM-5 (by template free and with template), ZSM-22, ZSM-48 were carried by modifying the reported procedure. Futher reaction on n-alkane (hexane, heptane and octane) hydroisomerization were tested.
Small pore zeolite 4A, was synthesized from different clays. A naturally available clay Bentonite obtained from Ashapura Mine Chem Limited was characterized by different physicochemical techniques. The different clays obtained from the company was qualitatively analyzed.
5) Summary of the Research work (02-03-1993 to 30-01-1998)
Hexamethyleneimine (HEM) has been used as a template for the synthesis of AlPO4-5, AlPO4-16, AlPO4-22 and SAPO-35 for the first time. During the studies on the synthesis of AlPO4-5, AlPO4-16, AlPO4-22 and SAPO-35, a novel crystalline layer material, AlPO4-L has been identified as an intermediate. This is probably an intermediate in all AlPO4 molecular sieve synthesis, when HEM is used as template. Physicochemical characterization shows that this is a lamellar type short range ordered layered aluminophosphate. Crystallization kinetics of AlPO4-5 using HEM template reveals that crystallization is faster compared to the conventional templates, viz., triethylamine and tripropylamine. The most crystalline sample was obtained at 473K in 4h from the reaction mixture of composition, Al2O3: P2O5: 1.16HEM: 45H2O. The addition of P in excess (1.2:1.0) leads to AlPO4-22, whereas excess of HEM (0.19M) gives AlPO4-16 structure. Changing the reaction medium to ethylene glycol and addition of silica (0.3SiO2) results in SAPO-35. Ethylene glycol is found to be superior to the aqueous medium in the synthesis of AlPO4-5 also.
The location of Si in SAPO-35 was characterized by 29Si MASNMR and FT-IR of surface hydroxyl groups. Three types of bridging hydroxyl groups giving bands at 3580, 3604, 3631 cm-1 were observed and these have been assigned to different crystallographic positions. They have been assigned to locations at eight member ring cages near S6R, near D6R and inside D6R.
New vanadium containing molecular sieves, VAPO-31, VAPO-41 and VAPSO-5 were synthesized. From the studies on vanadium incorporation in AlPO4-5, the following conclusions can be made. Tripropylamine is a more efficient template for vanadium incorporation compared to hexamethyleneimine. Vanadium incorporation is possible up to a critical value, above which dense phases are obtained. The crystalline VAPO-5 materials contain some amorphous vanadium oxides in the as-synthesized form, which increase on calcinations. Addition of silicon on the VAPO-5 synthesis gel enhances the crystallization rate and increases vanadium incorporation. Vanadium replaces phosphorous in the aluminophosphate framework. However in the presence of silicon, it has to compete to replace phosphorous. Permanganometric titrations indicate the presence of V5+ and V4+ ions in the as-synthesized samples. Calcination at 823K produces mostly V5+ ions. Elemental analysis show the sum of phosphorous and vanadium ions to be equal to aluminium. The enhancement of the decomposition temperature of the template in VAPO samples compared to AlPO suggests the presence of charged templates formed to compensate the negative charge produced when V4+ substitutes P5+ ions in the AlPO framework. Calcined VAPO-5 samples give a band at 950 cm-1 in the IR framework region showing the presence of (V=O) groups in the calcined samples. 27Al NMR spectra reveal that most of the aluminium is in tetrahedral co-ordination despite the presence of some unreacted alumina in the calcined VAPSO-5 samples. 29Si shows most of the silicon to be in Si:4Si environment and a small amount in Si:(2Al:2Si) and Si(3Al:Si) environments. UV-Vis spectra suggest that the vanadium species present in the as-synthesized samples are V5+(tetrahedral), V4+(tetrahedral), V4+(octahedral), while calcined samples contain V5+(tetrahedral) and V5+(square pyramidal) ions. Room temperature ESR spectra reveal eightline hyperfine splittings due to VO2+ species in a square pyramidal co-ordination. At liquid nitrogen temperature the intensity of the signal is enhanced four fold. This indicates that a large amount of VO2+ species is present in regular tetrahedral environment. This signals disappears on calcination and about 15% of the initial intensity is regained on reduction in H2. The amount reduced is equal to the amount of vanadium not leached out by ammonium acetate treatment and suggests that the framework vanadium undergoes redox transformation.
Cyclic voltammetric studies using graphite paste modified electrodes suggest the presence of two distinct sets of redox couples in the cyclic voltammograms of calcined samples of VAPO-5, VS-1, VS-2, V-EU-1, V-ZSM-22 and VAPSO-5. While a single redox couple is observed in the case of V-Al-b , three redox couples are observed in VAPO-31. The two redox couples found in most samples are speculated to be V5+/V4+ in two different co-ordination environments, viz., a distorted tetrahedral symmetry and a square pyramidal symmetry , presumably present in different locations in the zeolite. The V5+ ions of square pyramidal symmetry are probably formed from the oxidation of V4+ ions present in the as-synthesized samples.
VAPO-31 is found to be good catalyst for toluene oxidation, cyclochexene epoxidation and n-hexane oxifunctionalization. Incorporation of silicon in VAPO-5 gives cresols as the major product while no cresols are formed on VAPO-5. VAPSO-5 samples are active in benzaldehyde acetalization. Electrocatalysis at room temperature leads to a seven-fold increase in conversion compared to the thermal reaction, while the selectivity remains unchanged.
6) Summary of the Research work (01-03-1992 to 01-01-1993)
p-tertiary phenol is synthesized to synthesize azabicyclic compounds. The azabicyclic compound will be treated with dimethyl dioxiranes to get stereospecifically oxidized product. Dimethyldioxirane is stable at liquid nitrogen temperature. So the synthesis was carried out in cryocon. Besides I assisted Professor Jeyaraman to write a book on "azabicyclic compounds".
7) Summary of the Research work (01-09-1990 to 30-12-1991)
The following conclusions have been arrived from the research of the above period.
Adsorption of the product of electrolysis at high positive potentials (+0.6 V vs SCE) at the electrode surface effectively blocks the available area hindering the dissolution of mercury from the surface. This is the cause of the fall in limiting current of dc polarograms.
Since supporting electrolyte (acetate buffer) itself interacts with mercury, the mercury – supporting electrolyte (Hg – acetate) current is always superimposed on the Hg-amino acid interaction current. Hence wither amino acid is present or not, there will be current of Hg-acetate interaction leading to the intercept on the current axis of the plot of Ip or id vs [amino acid].
The exponential decrease in Ip(i(wt)) id, ip,c and ip,a at high concentrations of amino acids is due to blocking of the electrode surface by the products of mercury-amino acid interactions. Hence the blocking of the electrode surface is determined not only by potential but also [aminoacid].
Process A of mercury-aspartic acid and mercury – glutamic acid interaction correspond to mercuric mercury complex formation,
Hgo + (asp) ß ----------à Hg2+(asp)
and process B to be mercurous mercury complex formation,
Hgo + (asp) ß -----------à Hg22+(asp).
Process C is the result of mercury – acetate interaction.
With increasing pH half wave potentials and peak potentials are pushed to more negative (ie less positive) values indicating the facile nature of the process in the presence of decreasing [H+]. This positively proves that the highly ionic species of the aminoacid is involved in the interactions.
8) Summary of the Research work (01-01-1990 to 31-05-1990)
The cooling effect of various commercial talcum powders on human face was studied by comparing with porous pot. Initially the minute pores of porous pot was refereshed by blowing with hot air. Then the commercial talcum powder was applied gently around the pot. Hot water was poured inside the pot and allowed to cool. The cooling rate was calculated by substituting it in first order equation. The rate with time elaspsed were plotted. Like this, around twenty five talcum powder were studied. From the result the talcum powders were classified into three catagories depend on its rate. The study will prove the cooling efficiency talcum powders.
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List of Publications
Books
1.N. Venkatathri, N.E. Jacob, A.A. Behlekar and S.G. Hegde, "Synthesis, and characterization of AlPO4-31 using long chain secondary amines", Catalysis: Modern Trends, N.M. Gupta, and D.K. Chakrabarty (Eds.), Narosa publishing House, New House, New Delhi, India, (1995) 72.
2.N. Venkatathri, M.P. Vinod, S. Sivasanker and K. Vijayamohanan, " Studies on the redox behaviour of vanadium containing molecular sieves by cyclic voltammetry", Catalysis: Modern Trends, N.M. Gupta, and D.K. Chakrabarty (Eds.), Narosha publishing house, New house, New Delhi, India, (1995) 152.
3.N. Venkatathri, "Electroanalytical analysis of Interaction of Mercury with Dicarboxylic amino acids" Electronic book (to be published).
4.N. Venkatathri, "Synthesis, characterization and catalytic properties of AlPO and VAPO molecular sieves with different pore characteristics" Electronic book (to be published).
5.N. Venkatathri, "Aluminophosphate molecular sieves", Narosha publishing house, New Delhi, India (in preparation).
6.N. Venkatathri, "An Introduction to Silica Nanoparticles", Narosha publishing house, New Delhi, India (in preparation).
Journals
1995
7.M. Chatterjee, D. Bhattacharya, N. Venkatathri, and S. Sivasanker, "Synthesis, characterization and catalytic properties of two novel vanado-aluminosilicates with EU-1 and ZSM-22 structures", Catalysis Letters, 35 (1995) 313 [Impact Factor (IF) = 2.0].
8.N. Venkatathri, S.G. Hegde and S. Sivasanker, "Synthesis and Characterization of a Novel Vanadium analogue of AlPO4-31", J.Chem.Soc., Chem. Commun., (1995) 151 [IF = 4.5].
1996
9.N. Venkatathri, M.P. Vinod, K. Vijayamohanan, and S. Sivasanker, "Cyclic voltammetric studies of vanadium in V molecular sieves", J.Chem.Soc., Faraday Trans., 92 (1996) 473 [IF=2.6].
10.N. Venkatathri, and M.P. Vinod, "Characterization of vanadium-containing molecular sieves by cyclic voltammetry", Bull. Catal. Soc. India, 6 (1996) 7 [IF = 0.0]
1997
11.N. Venkatathri, S.G. Hegde, P.R. Rajamohanan and S. Sivasanker, "Synthesis of SAPO-35 in non-aqueous gels", J. Chem. Soc., Faraday Trans., 93 (1997) 3411 [IF = 2.6].
1998
12.N. Venkatathri, S.G. Hegde, V. Ramaswamy, and S. Sivasanker, "Isolation and characterization of a novel lamellar-type aluminophosphate, AlPO4-L, a common precursor for AlPO4 molecular sieves", Microporous and Mesoporous Materials, 23 (1998) 277 [IF = 3.4].
2002
13.N. Venkatathri, "Synthesis and characterization of AlPOn molecular sieves from hexamethyleneimine template", Ind. J. Chem., 41A (2002) 2223 [IF=0.5].
14.N. Venkatathri, B. Tope, and S. G. Hegde, "Synthesis and characterization of the zeolite ZSM-35", Bull. Catal. Soc. India, 1 (2002) 131 [IF =0.0].
15.N. Venkatathri, "Synthesis and characterization of AlPO4-22 from non aqueous systems using hexamethyleneimine template" Bull. Catal. Soc. India, 1 (2002) 181 [IF=0.0].
2003
16.N. Venkatathri, "Synthesis and characterization of vanadium containing ATO and AFO type molecular sieves", Appl. Catal. A: General, 242 (2003) 393 [IF = 2.8].
17.R. Srivastava, N. Venkatathri, D. Srinivas and P. Ratnaswamy, "Studies on heck reaction by Pd supported SAPO-31 catalyst", Tet. Lett., 44 (2003) 3649 [IF = 2.4].
18.N. Venkatathri, "Synthesis of AlPO4-31 molecular sieve from non-aqueous systems using hexamethyleneimine template" Mat. Lett., 58 (2003) 241 [IF = 1.4].
19.N. Venkatathri, "An improved process for the synthesis of VPI-5 molecular sieve" Bull. Mat. Sci. 26 (2003) 101 [IF = 0.6].
20.N. Venkatathri, S.G. Hegde, and S. Sivasanker, "Studies on Vanadium incorporation in AFI type molecular sieves", Ind. J. Chem., 42A (2003) 974 [IF = 0.5].
21.N. Venkatathri, "Synthesis of AlPO4-5 using hexamethyleneimine template in aqueous and nonaqueous systems", Ind. J. Chem., 42A (2003)2717 [IF = 0.5].
22.N. Venkatathri, "Synthesis, characterization of a novel layered aluminophosphate AlPO4-L".J. Ind. Chem. Soc., 80 (2003) 691 [IF = 0.4].
23.R. Srivastava and N. Venkatathri, "An efficient esterification of Alcohols by ZSM-35 molecular sieve", Ind. J. Chem. Technol., 10 (2003) 247 [IF = 0.3].
24.N. Venkatathri and G.P. Aswin Kumar, "Synthesis and characterization of Manganese containing molecular sieves", Ultra Science, 15 (2003) 345 [IF = 0.0].
25.N. Venkatathri, "Synthesis, and characterization of a novel Mesoporous aluminophosphate, NCL-7 synthesized using cetyl methyl ammonium bromide", Ultra Science, 15 (2003) 415 [IF = 0.0].
2004
26.N. Venkatathri, "Synthesis and characterization of the Zeolite, Nanocrystalline ZSM-35", Stud. Surf. Sci. Catal., 154 (2004) 189 [IF = 0.5].
27.N. Venkatathri, and R. Srivastava, "Synthesis, characterization and catalytic properties of SAPO-11, SAPO-31 and SAPO-41 molecular sieves", Stud. Surf. Sci. Catal., 154 (2004) 978 [IF = 0.5].
28.N. Venkatathri and S. Ganapathy, "A two dimensional NMR study on Ferrierite and ZSM-35", J. Chem. Sci., 16 (2004) 1 [IF = 0.6].
29.N. Venkatathri, and S. Sivasanker, "Influence of various parameters on synthesis of AlPO4-5 molecular sieve using hexamethyleneimine template" Ind. J. Chem., 43A (2004) 247 [IF = 0.5].
30.R. Srivastava, and N. Venkatathri, "Efficient chemoselective liquid phase acylation of amines, alcohols and bifunctional compounds over ZSM-35", Ind. J. Chem., 43B (2004) 888 [IF = 0.5].
31.N. Venkatathri, and R. Srivastava, "Synthesis, characterization and catalytic properties of SAPO-11, SAPO-31 and SAPO-41 molecular sieves", Ind. J. Chem., 43A (2004) 1039 [IF = 0.5].
32.N. Venkatathri, "Synthesis and Characterization of a novel Lamellar type aluminosilicate molecular sieve, NCL-5", Ind. J. Chem., 43A (2004) 2514 [IF = 0.5].
33.N. Venkatathri, "Electrocatalysis of toluene oxidation using VAPO-5 modified electrodes", Ind. J. Chem., 43A (11) (2004) 2325 [IF = 0.5].
34.N. Venkatathri, "Synthesis and characterization of a novel macroporous titanoaluminophosphate molecular sieve, NCL-9", Ind. J. Chem., 43A (11) (2004) 2315 [IF = 0.5].
35.N. Venkatathri, "Synthesis and characterization of SAPO-15 molecular sieve using hexamethylene tetramine template", J. Ind. Chem. Soc., 81 (2004) 198 [IF = 0.4].
36.N. Venkatathri, and S. Sivasanker, "Synthesis and characterization of SAPO-35 with different silicon content", Ind. J. Chem. Technol., 11 (2004) 260 [IF = 0.3].
37.N. Venkatathri and G.P. Aswin Kumar, "Synthesis and characterization of CoAlPO-5 and CoAlPO-31 molecular sieves" Ind. J. Chem. Technol. 11 (2004) 843 [IF = 0.3].
38.N. Venkatathri, and R. Srivastava, "Silicoaluminophosphate molecular sieve SAPO-41: Synthesis, characteriztion and alkylation of toluene with alcohol", J. Ind. Inst. Sci., 84 (2004) 99 [IF = 0.0].
39.N. Venkatathri, "Synthesis and characterization silicon containing Anatase (TiO2)" Bull. Catal. Soc. India, 3 (2004) 99 [IF = 0.0].
40.N. Venkatathri, "Synthesis, Characterization and Catalytic properties of mesoporous titanoaluminophosphate molecular sieves", Ultra Science, 16 (2004) 207 [IF = 0.0].
41.N. Venkatathri, "Synthesis and characterization of mesoporous aluminosilicate molecular sieves, SBA-17", Ultra Science, 16 (2004) 261 [IF = 0.0].
42.N. Venkatathri, "Chemoselective Reduction of Nitro, Carbonyl and Bifunctional compounds catalysed by CoAlPO-5, CoAlPO-11 and CoAlPO-31 molecular sieves" Ultra Science, 16 (2004) 155 [IF = 0.0].
2005
43.N. Venkatathri and R. Srivastava, "Synthesis and charaterization of vanadium containing mesoporous aluminophosphate molecular sieves", Catal. Commun., 6 (2005) 177 [IF = 2.0].
44.N. Venkatathri, "Synthesis and NMR characterization of SAPO-35 molecular sieves synthesized from aqueous system using Hexamethyleneimine template", Mat. Research. Bull., 40 (2005) 1157 [IF = 1.4].
45.N. Venkatathri, "Synthesis and characterization of a novel extra large pore sized, NCL-6", J. Ind. Chem. Soc., 82 (2005) 77 [IF = 0.4].
46.N. Venkatathri, "Synthesis and characterization of SAPO-5 from non-aqueous media using hexamethyleneimine template", J. Sci. Ind. Res., 64 (2005) 509 [IF = 0.3].
47.N. Venkatathri, "Synthesis and characterization of AlPO4-21 type molecular sieve from non-aqueous media" Bull. Catal. Soc. India, 4 (2005) 18 [IF = 0.0].
48.N. Venkatathri, "Aging-Directed synthesis of AlPO4-31 Molecular Sieve Fibers", Ultra Science, 17 (2005) 11[IF = 0.0].
49.N. Venkatathri, "Synthesis of a two novel extralarge pore aluminophosphate molecular sieves", Ultra Science, 17 (2005) 107 [IF = 0.0].
50.N. Venkatathri, "Spontaneous assembly of ordered macroporous silicon containing titania", Ultra Science, 17 (2005) 121 [IF = 0.0].
51.N. Venkatathri, "Influence of synthesis parameters on characterization of AlPO4-22 " Ultra Science, 17 (2005) 287 [IF = 0.0].
52.N. Venkatathri, "Electroanalytical analysis of interaction of mercury with glutamic acid in acetate buffers", Ultra Science, 17 (2005) 389 [IF = 0.0].
53.N. Venkatathri, "Rapid synthesis of high alumina ZSM-5 zeolite catalyst from ethylene diamine template", Oriental J. Chem., 21 (2005) 195 [IF = 0.0].
54.N. Venkatathri, "Synthesis of AlPO4-22 from multicomponent systems" Oriental . J. Chem., 21 (2005) 411 [IF = 0.0].
55.N. Venkatathri, "Synthesis and characterization of AlPO4-21molecular sieve using a novel template, dimethylamine", Oriental J. Chem., 21 (2005) 483 [IF = 0.0].
56.N. Venkatathri, "Synthesis and characterization of 4A zeolite from clay materials", Materials Science Research India, 3 (2005) 111 [IF = 0.0].
57.N. Venkatathri, "Synthesis and characterization of novel organo intercalated clays", Ultra Chemistry, 1 (2005) 83 [IF = 0.0].
2006
58.N. Venkatathri, "Synthesis, characterization and catalytic properties of vanadium aluminophosphate molecular sieve, VAPO-31 from non-aqueous media", Appl. Catal., 310(2006)31 [IF = 2.8].
59.N. Venkatathri, "Synthesis and characterization of high silica content silicoaluminophosphate SAPO-35 from non-aqueous medium", Catal. Commun. 7 (2006) 773 [IF = 2.0].
60.N. Venkatathri and V.N. Shetty, "Synthesis, Characterization and Catalytic properties of TAPO-31 molecular sieves from tripropylamine template", Catal. Commun., 7 (2006) 1015 [IF = 2.0].
61.N. Venkatathri, "Synthesis of ZSM-5 molecular sieve with ethylene diamine template", Ind. J. Chem. Soc. 83 (2006) 686 [IF = 0.4].
62.N. Venkatathri, "Promoter induced rapid synthesis of AlPO4-5 molecular sieve in non-aqueous media using hexamethyleneimine template" Ind. J. Chem. Soc., 83 (2006) 692 [IF = 0.4].
63.N. Venkatathri, "Synthesis and characterization of AlPO4-5 using hexamethyleneimine template at room temperature", J. Ind. Chem. Soc., 83 (2006) 697 [IF = 0.4].
64.N. Venkatathri, "Synthesis and characterization of VPI-5 aluminophosphate molecular sieves from non-aqueous media", Asian J. Chem., 18 (2006) 1255 [IF = 0.3].
65.N. Venkatathri, "Synthesis and characterization of composite ZSM-35/ZSM-5 molecular sieves using ethylenediamine template", Bull. Catal. Soc. Ind., 5 (2006) 17 [IF = 0.0].
66.N. Venkatathri, "Characterization and catalytic properties of a naturally occurring clay, Bentonite", Bull. Catal. Soc. India, 5 (2006) 61 [IF = 0.0].
67.N. Venkatathri "Synthesis and NMR characterization of ZSM-35", Bull. Catal. Soc. India, 5 (2006) 101 [IF = 0.0].
68.N. Venkatathri, "Synthesis and characterization of SAPO-35 from aqueous media using hexamethyleneimine template" Bull. Catal. Soc. India, 5 (2006) 121 [IF = 0.0].
69.N. Venkatathri and L. Saikia, "Synthesis and characterization of a novel small pore aluminophosphate molecular sieves in atmospheric pressure", Bull. Catal. Soc. India, 5 (2006) 146 [IF = 0.0].
70.N. Venkatathri, "Synthesis and characterization of a orgnanophosphate analogues to Zeolite ZSM-5, Bull. Catal. Soc. India, 5 (2006) 146 [IF = 0.0].
71.N. Venkatathri and L. Saikia "Synthesis, characterization and catalytic properties of a novel large pore aluminosilicate molecular sieve", Ultra Science, 18 (2006) 215 [IF = 0.0].
72.N. Venkatathri, "Synthesis and characterization of AlPO4-31 from aqueous media using hexamethyleneimine template", Ultra Science, 18 (2006) 71 [IF = 0.0].
73.N. Venkatathri, "Influence of reaction parameters on synthesis silica nanosphere", Material Science Research India 3 (2006) 23 [IF = 0.0].
74.N. Venkatathri, "Synthesis and characterization of X-ray amorphous ZSM-5 molecular sieve from ethylene diamine template", Materials Science Research India, 3 (2006) 187 [IF = 0.0].
75.N. Venkatathri, and L. Saikia, "Synthesis of novel aluminophosphate molecular sieves at atmospheric pressure", Current world environment, 1 (2006) 1 [IF = 0.0].
76.N. Venkatathri, "Synthesis of aluminosilicate hallow spheres in absence of polymer", Oriental J. Chem., 22 (2006)213 [IF = 0.0].
2007
77.N. Venkatathri, "Synthesis of mesoporous silica nanosphere", Solid State Communications, 143 (2007) 493 [IF = 1.6] (One among the Top most 25 papers published in this journal during July-September 2007)..
78.N. Venkatathri, "Synthesis and characterization of a Nanocrystalline ZSM-5 molecular sieve", React. Kinet. Catal. Lett., 91 (2007) 283 [IF = 0.8].
79.N. Venkatathri, "Synthesis of silica nanosphere from homogeneous and heterogeneous systems", Bull. Mat. Sci., 30 (2007) 615 [IF = 0.6].
80.D.S. Yun, H.J. Kim, H.C. Shin, N. Venkatathri, J.W. Yoo, S.H. Lee, D.J. Lee, and N.H. Kim, "A new insight into the mechanistic study on synthesis of Silica Nanospheres", Solid State Phenomina, 124-126 (2007) 1249 [IF = 0.5].
81.N. Venkatathri, "Synthesis and characterization of silica nanospheres from octadecyltrimethoxy silane", Indian. J. Chem. Sec. A, 46 (2007) 1955 [IF = 0.5].
82.N. Venkatathri, "Synthesis of silica microsphere using poly vinyl alcohol", J. Ind. Chem. Soc., 84 (2007) 1159 [IF = 0.4].
83.N. Venkatathri, "Synthesis and NMR characterization of VPI-5 molecular sieve", Asian J. Chem., 19 (2007) 347 [IF = 0.3].
2008
84.N. Venkatathri, "A novel route to synthesis Aluminum silicate hollow spheres having ZSM-5 structure in absence of template", Mat Lett. 62 (2008) 462 [IF = 1.4].
85.N. Venkatathri, "Synthesis and characterization of silica nanospheres from octadecyltrimethoxy silane", Bull. Korean Chem. Soc., 23 (2008) 29 [IF = 1.0].
Papers in press
86.N. Venkatathri, "Synthesis and characterization of silica hollow nanocuboid", Microporous and Mesoporous Materials (in press) [IF = 3.4].
87.N. Venkatathri and J.W. Yoo, "A comparative study on synthesis, characterization and catalytic properties of a LEV silicoaluminophosphate molecular sieve, SAPO-35 from aqueous and non-aqueous media", Appl. Catal. (in press) [IF = 2.8].
88.N. Venkatathri, "Synthesis of silica microsphere using poly vinyl alcohol", Materials Science and Engineering : C (in press) [IF = 1.4].
89.N. Venkatathri, R. Srivastava, D.S. Yun, J.W. Yoo, "Synthesis of silica hollo nanocuboids", Mat. Lett. (in press) [IF = 1.4].
90.N. Venkatathri, "Synthesis, characterization and catalytic properties of a nanocrystalline Ti – containing mesoporous molecular sieve", Reaction Kinetics and Catalysis Letters (in press) [IF = 0.8].
91.N. Venkatathri, "Synthesis of silica microsphere contain cavity", J. Ind. Chem. Soc., (in press) 1 [IF = 0.4].
Papers under revision
92.N. Venkatathri, "Synthesis of a series of organophosphate in solvent free system", Microporous and Mesoporous Materials (under revision) [IF = 3.4].
93.N. Venkatathri, "Influence of catalyst and solvent on synthesis of solid core mesoporous silica", Mat. Res. Bull. (under revision) [IF = 1.4].
94.N. Venkatathri "Synthesis of carbon nanotubes from AlPO4-L molecular sieve", Bull. Mater. Sci. (under revision) [IF = 0.6].
95.N. Venkatathri, "Influence of various parameters on hanging mercury drop electrode (HMDE) in Aspartic acid/Acetate Buffer cyclic voltammetry", J. Ind. Chem. Soc. (under revision) [IF = 0.4].
Papers communicated
96.N. Venkatathri, R. Srivastava, D.S. Yun and J.W. Yoo, "Silica hollow nanocuboids: A novel method of fabrication and guest encapsulation", J. Mat. Chem. (communicated) [IF = 4.3].
97.N. Venkatathri, "Synthesis and characterization of silica nanosphere from polystyrene", Mat. Chem. Phys. (communicated) [IF = 1.6].
98.N. Venkatathri, "Synthesis of silica hollow microsphere by dual surfactant", Solid State Communications (communicated) [IF = 1.6].
99.N. Venkatathri, "Synthesis of a novel hollow microsphere by ultrasonic method", J. Non-crystalline Solids (communicated) [IF = 1.5].
100.N. Venkatathri, "Synthesis and characterization of Titanium aluminophosphate hollow nanosphere", Materials Science and Engineering : C (communicated) [IF = 1.4].
101.N. Venkatathri "Synthesis, characterization and catalytic properties of ZSM-35 from ethylene diamine template", Bull. Korean Chem. Soc. (communicated) [IF = 1.0].
102.N. Venkatathri, "Synthesis, characterization and catalytic properties of an Organophosphate", React. Kinetc. Catal. Lett. (communicated) [IF = 0.75].
103.N. Venkatathri, "Synthesis of a mesoporous nano silica molecular sieve from ultrasonic method", Bull. Mat. Sci. (communicated) [IF = 0.6].
104.N. Venkatathri, "Influence of kinetics on yield and particle growth of silica nanosphere", J. Chem. Sci. (communicated) [IF = 0.6].
105.N. Venkatathri, "Synthesis of silica hollow microsphere by dual surfactant and influence of various template on synthesis of silica hollow microsphere", J. Chem. Sci. (communicated) [IF = 0.6].
106.N. Venkatathri, "An improved method for synthesis of silica nanospheres using organic amine", Ind. J. Chem. Sec. A (communicated) [IF = 0.5].
107.N. Venkatathri, "Synthesis, characterization and catalytic properties of ZSM-35 from ethylenediamine template", Ind. J. Chem. Sec. A (communicated) [IF = 0.5].
108.N. Venkatathri, "Synthesis of silica hollow microsphere by organic and inorganic template", J. Ind. Chem. Soc (communicated) [IF = 0.4].
109.N. Venkatathri, "Influence of synthesis time on yield and particle size of silica nanosphere" J. Ind. Chem. Soc. (communicated) [IF = 0.4].
110.N. Venkatathri, "Influence of solvent on preparation of silica nanosphere", J. Ind. Chem. Soc.(communicated) [IF = 0.4].
Papers to be communicated
111.N. Venkatathri, "Synthesis and characterization a novel silica capsule by Ultrasonic method", Chem. Commun. (to be communicated) [IF = 4.5].
Papers in preparation
112.N. Venkatathri, D. Santhanaraj, "Synthesis, characterization and catalytic properties of an Manganese containing organophosphate", Catal. Commun. (in preparation) [IF = 2.0].
113.N. Venkatathri, "Synthesis and characterization of Hollow silica microsphere from TPABr and CaCO3 " , Mat.Chem. Phys. (in preparation) [IF = 1.6].
114.N. Venkatathri, "Synthesis and characterization of Hollow silica microsphere from CTABr using ultrasonic method", Mat. Chem. Phys. (in preparation) [IF = 1.6].
115.N. Venkatathri, "Synthesis and characterization of Hollow silica microsphere from TPABr using ultrasonic method at higher crystallization time", Mat. Res. Bull. (in preparation) [IF = 1.4].
116.N. Vekatathri, "Synthesis and characterization of Hollow silica microsphere from n-octylamine using ultrasonic method", Mat. Res. Bull. (in preparation) [IF = 1.4].
117.N. Venkatathri, "Synthesis and characterization of hollow silica Microsphere from dual surfactant ", Mat Lett. (in preparation) [IF = 1.4].
118.N. Venkatathri, "Synthesis and characterization of hollow silica nanosphere from CTABr and CaCO3" Mat. Lett. (in preparation) [IF = 1.4].
119.N. Venkatathri, "Synthesis and characterization of hollow silica microsphere from TPABr using ultrasonic method", Bull. Mat. Sci. (in preparation) [IF = 0.6].
120.N. Venkatathri, "Synthesis and characterization of Hollow silica microsphere from polyvinyl alcohol", Bull. Mat. Sci. (in preparation) [IF = 0.6].
Patents
121.N. Venkatathri, and S.G. Hegde, "An improved process for the synthesis of a silicoaluminophosphate, SAPO-35 molecular sieve", U.S. Pat. (07037874 Cl. 502-14 (2006)).
122.N. Venkatathri, and S. G. Hegde, "An improved process for the synthesis of AlPO4-n molecular sieves" U.S. Pat., (NF-276/2004).
123.N. Venkatathri, and S.G. Hegde, "An improved process for the synthesis of a silicoaluminophosphate, SAPO-35 molecular sieve", Ind. Pat., (1363/DEL/2003)
124.N. Venkatathri, and S. G. Hegde, "An improved process for the synthesis of AlPO4-n molecular sieves" Ind. Pat., (NF-276/2004)
125.N. Venkatathri, and S. G. Hegde, "A process for the synthesis of Vanadium containing aluminophosphate molecular sieves", Ind. Pat., (NF-109/2005).
126.N. Venkatathri, and S. G. Hegde, "An improved process for the synthesis of AlPO4-21 molecular sieves", Ind. Pat., (NF-108/2005)
127.N. Venkatathri and S.G. Hegde, "An improved process for the synthesis of AlPO4-31 molecular sieves", Ind. Pat. (NF-168/2005).
128.N. Venkatathri and S.G. Hegde, "An improved process for the synthesis of AlPO4-22 molecular sieve", Ind. Pat. ( NF-167/2005).
129.N. Venkatathri and S.G. Hegde, "An improved process for the preparation of porous crystalline medium pore aluminosilicate molecular sieves," Ind. Pat. (NF-166/2005).
130.N. Venkatathri and S.G. Hegde, "An improved process for the synthesis of vanadium containing aluminophosphate, VAPO-5", Ind. Pat. (NF-174/2005).
131.N. Venkatathri and S.G. Hegde, "A process for the preparation of small pore silicoaluminophosphate molecular sieves", Ind. Pat. (NF-169/2005).
132.N. Venkatathri and S.G. Hegde, "A process for the preparation of small pore aluminophosphate molecular sieves by atmospheric pressure", Ind. Pat. (NF-170/2005).
133.N. Venkatathri and S.G. Hegde, "A process for the preparation of silicon containing anatase", Ind. Pat. (NF-173/2005).
134.N. Venkatathri and S.G. Hegde, "A process for the preparation of porous crystalline novel extra large pore aluminophosphate molecular sieves", Ind. Pat. (NF-172/2005).
135.N. Venkatathri and S.G. Hegde, "A process for the preparation of medium pore silicoaluminophosphate molecular sieves", Ind. Pat. (NF-171/2005).
136.N. Venkatathri and S.G. Hegde, "A process for the synthesis of aluminophosphate molecular sieve, AlPO4-31 fibers", Ind. Pat. (NF-362//2005).
137.N. Venkatathri and S.G. Hegde, "An improved process for the synthesis of aluminophosphate molecular sieves from non-aqueous media", Ind. Pat. (NF-368/2005).
138.N. Venkatathri and K.R. Kamble, "A process for the synthesis of metal containing aluminophosphate molecular sieves", Ind. Pat. (filed on 24-10-05).
139.N. Venkatathri, and K.R. Kamble, "An improved process for the preparation of ZSM-35 catalyst", Ind. Pat. (filed on 24-10-05).
140.N. Venkatathri and K.R. Kamble, "A process for the synthesis of a novel large pore aluminosilicate", Ind. Pat. (filed on 24-10-05).
141.N. Venkatathri and K.R. Kamble, A process for the synthesis of a novel organic amine intercalated clays", Ind. Pat. (filed on 24-10-05).
142.N. Venkatathri and S.G. Hegde, "A process for the synthesis of zeolite 4A from china clay", Ind. Pat. (filed on 24-10-05).
Presented in Symposium/ Workshop/ Invited talk/Seminar
Chair a session
143.N. Venkatathri, Micro to Nano porous materials, 14th International clay conference, Italy, June, 14-20, 2009 (invited).
Oral presentation
144.N. Venkatathri, N.E. Jacob, A.A. Behlekar and S.G. Hegde, "Synthesis, and characterization of AlPO4-31 using long chain secondary amines", 12th National Symposium on Catalysis, Oral presentation, Bhabha Atomic Research Centre, Bombay, India, December, 19-22, 1994, CP-9.
145.N. Venkatathri and S. Sivasanker, "Synthesis and characterization of a novel extra large pore aluminophosphate, NCL-2" 16th National symposium & 1st Indo-German Conference on Catalysis, Oral presentation, Hyderabad, India, February, 6-8, 2003, OR-23.
146.N. Venkatathri and K.R. Kamble, "Efficient and selective methanol to olefin reaction over improved, eco-friendly silicoaluminophosphate (SAPO-35) catalyst", National Workshop on Catalysis for Energy, Oral presentation, Banaras Hindu University, Varanasi 221 005, February 23-25, 2006, OP09.
147.N. Venkatathri, "A novel procedure for synthesis and characterization of silica nanosphere", IUMRS-ICA-2006, Oral presentation, Hotel Shilla, Jeju, South Korea, September 10-14, 2006.
148.N. Venkatathri, "Synthesis and characterization of a novel organophosphate analogues to Zeolite ZSM-5", 18th National Symposium and first Indo-US seminar on Catalysis, Indian Institute of Petroleum, Dehradun. April 16-18, 2007
Poster presentation
149.N. Venkatathri, M.P. Vinod, S. Sivasanker and K. Vijayamohanan, " Studies on the redox behaviour of vanadium containing molecular sieves by cyclic voltammetry", 12th National Symposium on Catalysis, Bhabha Atomic Research Centre, Bombay, India, December, 19-22, 1994, POS-I/13.
150.N. Venkatathri, N.E. Jacob, and S.G. Hegde, "Thermal properties of "AFO" type aluminophosphate molecular sieves", National workshop on catalysis- CSMCRI, Bhavnagar, December, 1995, PO 44.
151.N. Venkatathri, "Electrocatalysis of toluene oxidation using VAPO-5 modified electrodes", 16th National symposium & 1st Indo-German Conference on Catalysis, Hyderabad, India, February, 6-8, 2003, P-20.
152.G.P. Aswinkumar, N. Venkatathri, M. Palanichamy, V. Murugesan and S. Sivasanker, "Oxyfunctionalisation of alkyl aromatics using metal incorporated molecular sieves", 16th National symposium & 1st Indo-German Conference on Catalysis, Hyderabad, India, February, 6-8, 2003, OR-7.
153.R. Srivastava, N. Venkatathri and D. Srinivas, "Studies on heck reaction over Pd/SAPO-31 catalyst", 16th National symposium & 1st Indo-German Conference on Catalysis, Hyderabad, India, February, 6-8, 2003, P-76.
154.N. Venkatathri, "Synthesis and Characterization of a novel mesoporous aluminophosphate molecular sieves, NCL-7", A symposium organized in honour of Dr. A.V. Ramaswamy, Head, Catalysis division, NCL, Pune 411 008, India on his superannuation, 31st May 2003, P-13.
155.N. Venkatathri, and R. Srivastava, "Synthesis, characterization and catalytic properties of SAPO-11, SAPO-31 and SAPO-41 molecular sieves" 14th International Zeolite Symposium, April 2004, p397.
156.N. Venkatathri, "Synthesis and characterization of the Zeolite, Nanocrystalline ZSM-35"14th International Zeolite Symposium, April 2004, p 135.
157.N. Venkatathri, "Synthesis and characterization of AlPO4-21molecular sieve using a novel template, dimethylamine", 17th National Symposium on catalysis, Bhavnagar, January, 2005, PD11.
158.Dong Shin Yun, Hyun Jung Kim, Venkatathri Narayanan and Jung Whan Yoo, "A new insight into the mechanistic study on synthesis of Silica Nanospheres", IUMRS-ICA-2006, Hotel Shilla, Jeju, South Korea, September 10-14, 2006.
159.N. Venkatathri, D. Shanthanaraj and K. Shanthi, National workshop on catalysis, Institute of Materials and Minerals Technology, Bhuvaneshwer, February 18-20, 2008, PP80.
160.N. Venkatathri, "Synthesis of Single wall carbon nanotubes from a lamellar type aluminophosphate, AlPO4-L", Diamond 2008, 7-11 September 2008, Sitges, Spain (communicated).
Invited talk
161.N. Venkatathri, "Synthesis and physicochemical characterization of molecular sieves", Invited talk, Ashapura R & D center, Navi Mumbai, February, 2005.
162.N. Venkatathri, "Efficient and selective methanol to olefin reaction over improved, eco-friendly silicoaluminophosphate (SAPO-35) catalyst", Invited talk, Composite materials center, Korea Institute of Ceramic Engineering and Technology, Seoul, South Korea, 19 th January 2006.
Seminar
163.N. Venkatathri, Seminar, Synthesis of various aluminophosphate molecular sieves using hexamethyleneimine template", Catalysis division, National Chemical Laboratory, Pune 411 008, March 1995.
164.N. Venkatathri, Seminar, "Cyclic voltammetric studies on Vanadium containing molecular sieves". Catalysis division, National Chemical Laboratory, Pune 411 008, March 1996.
165.N. Venkatathri, Seminar, "Synthesis, characterization medium pore Vanadium aluminophosphate molecular sieves" Catalysis division, National Chemical Laboratory, Pune 411 008, March 1997.
166.N. Venkatathri, Seminar, "Synthesis, characterization and catalytic properties of AlPO and VAPO molecular sieves with different pore characteristics" Department of Chemistry, University of Pune, Pune 411 007, India, 1997.
167.N. Venkatathri, Seminar, "n-hexane hydroisomerization over different molecular sieves", Council of Scientific and Industrial Research, New Delhi, India, 2000.
168.N. Venkatathri, Seminar, "Synthesis and characterization of Nanocrystalline medium pore molecular sieves", Catalysis division, National Chemical Laboratory, Pune 411 008, February 2002.
169.N. Venkatathri, Seminar, "Synthesis and characterization of metal containing aluminophosphate molecular sieves", Catalysis division, National Chemical Laboratory, Pune 411 008, March 2003.
170.N. Venkatathri, Seminar, "Synthesis and characterization of titanium containing molecular sieves", Catalysis division, National Chemical Laboratory, Pune 411 008, March 2004.
171.N. Venkatathri, Seminar, "Synthesis, characterization and catalytic properties of Vanadium containing hexagonal mesoporous aluminophosphate molecular sieves", Catalysis division, National Chemical Laboratory, Pune 411 008, March 1995.
172.N. Venkatathri, Seminar, "Synthesis of hollow silica nanospheres using different routes", Composite materials center, Korea Institute of Ceramic Engineering and Technology, Seoul, South Korea, January 2006.
173.N. Venkatathri, "Synthesis of nano hexagonal composite and cuboid", Composite Materials Center, Korea Institute of Ceramic Engineering and Technology, Seoul, South Korea, 23 February 2006.
174.N. Venkatathri, "Synthesis of various shape hollow silica and introduction of catalytic active center on hollow nanocuboid", CSIR head quarters, New Delhi, India, 22nd December 2006.
175.N. Venkatathri, "An introduction to catalysis", National Institute of Technology, Warangal, India, 16th December 2007.
Published as popular article in magazines
176.N. Venkatathri, N.E. Jacob, and S.G. Hegde, "Thermal properties of "AFO" type aluminophosphate molecular sieves", National workshop on catalysis- CSMCRI, Bhavnagar, December, 1995, PO 44.
Citations
S. No.
Book/Journal
Paper
1."Introduction to Green Chemistry" By Albert S Matlack, CRC Press, 2001.
(1) N. Venkatathri, S.G. Hegde and S. Sivasanker, "Synthesis and Characterization of a Novel Vanadium analogue of AlPO4-31", J.Chem.Soc., Chem. Commun., (1995) 151.
2.Microporous Mesoporous Materials, 55 (2002) 203. (1)
3.Hydrothermal reactions and techniques: The Proceedings of the seventh International symposium on Hydrothermal reactions, By Shou-Hua Feng Z. Shi, J.S. Chen, World Scientific, 2003.
(2) N. Venkatathri, S.G. Hegde, V. Ramaswamy, and S. Sivasanker, "Isolation and characterization of a novel lamellar-type aluminophosphate, AlPO4-L, a common precursor for AlPO4 molecular sieves", Microporous and Mesoporous Materials, 23 (1998) 277.
4.J. Catal. 207 (2002) 113.
(2)
6.Database of Zeolite structures
(1) & (2)
5.Current Science, 91 (2006) 12.
(3) N. Venkatathri and K.R. Kamble, "Efficient and selective methanol to olefin reaction over improved, eco-friendly silicoaluminophosphate (SAPO-35) catalyst", National Workshop on Catalysis for Energy, Oral presentation, Banaras Hindu University, Varanasi 221 005, February 23-25, 2006, OP09.
7.Chemistry-Catalysis database
(4) N. Venkatathri, "Synthesis and characterization of AlPO4-22 from non aqueous systems using hexamethyleneimine template" Bull. Catal. Soc. India, 1 (2002) 181.
8.1906 Citations
(5) M. Chatterjee, D. Bhattacharya, N. Venkatathri, and S. Sivasanker, "Synthesis, characterization and catalytic properties of two novel vanado-aluminosilicates with EU-1 and ZSM-22 structures", Catalysis Letters, 35 (1995) 313 + 33 papers
Papers Reviewed
S.No.
Journal
Numbers
1.Ind. J. Chem., Sec. A
11
2.Ind. J. Chem. Sec. B
4
3.J. Sci. Tech. Res.
2
4.J. Nanoscience and Nanotechnology
2
5.Bull. Korean Chemical Society
1
6.Mat. Res. Bull.
1
7.Materials Science and Engineering: C
1
8.Catal. Commun.
1
9.J. Mol. Catal. A: General
1
10.Microporous and Mesoporous Materials
1
Research supervision
S. No.
Co-supervisor
Supervisor
Student Name
Course
1.Dr. N. Venkatathri
(Apr 2001 to Sep 2001)
Dr. S. Sivasanker
Mr. G.P. Aswin Kumar
M.Sc.
2."(Feb 2007 to July 2007)
Prof. K. Shanthi
Miss D. Gayathri
M.Sc.
3." (March 1995 to Jan 1998)
Dr. S. Sivasanker
Mr. Anil Kumar Sinha
Ph.D.
4."(Feb 2001 to Jan 2003)
Dr. V. Ramaswamy
Mr. B. Murugan
Ph.D.
5."(Feb 2001 to Nov 2005)
Dr. D. Srinivas
Mr. Rajendra Srivastava
Ph.D.
6."(Feb 2001 to Nov 2005)
"
Mr. V.N. Shetty
Ph.D.
7."(Feb 2001 to Nov 2005)"
Mr. Lakshi Saikia
Ph.D.
8.''2005 to Nov. 2006)
Dr. J.W. Yoo
Mr. Dong Shin Yun
Ph.D.
9."(Dec 2005 to Nov. 2006)
"
Miss. Hyun Jung Kim
Ph.D.
10."(Feb 2007 to till date)
Prof. K. Shanthi
Mr. D. Santhanaraj
Ph.D.
11."(Feb 2007 to till date)
Prof. K. Shanthi
Mr. C. Suresh
Ph.D.
12."(Feb 2007 to till date)
Prof. K. Shanthi
Mr. C. Mahendran
Ph.D.
Biographical Data
Date of Birth
15th July 1967
Place of Birth
Then maha deva mangalam, Tamil Nadu, India.
Father’s Name
Mr. Narayanan Margasagayam
Caste and Religion
Other Backward Class (OBC, Agamudayar) and Hindu
Marital Status
Married (13-06-2003)
Spouse Name
Mrs. Kavitha Venkatathri
Spouse Education
M.Sc. (Chemistry)
Nationality
Indian (Passport No. F4542312)
Permanent address
201 North street
Then maha deva mangalam
Polur taluk, Tiruvannamalai district
Tamil Nadu 606 908, India.
Languages known
Tamil, English and Hindi
Hobbies
Reading Books and Popular Articles, Classical Music, Watching Cricket, Movies, Playing Carrom and table tennis.
References
1.Dr. S. Sivasanker
Emeritus Scientist
Catalysis division
National Chemical Laboratory
Pune 411 008, Maharastra, India.
Phone/Fax: +91-20-25893761
E.mail.: mailto:s.
2.Professor S. Nanjundan,
Head, Department of Chemistry,
College of Engineering,
Anna University,
Chennai – 25, Tamil Nadu, India.
Tel: +91-44-22203150
Fax: +91-44-22200660
E-mail.:snanjundan@annauniv.edu
3.Dr. Jung Whan Yoo
Senior Researcher
Composite Materials Center
Korea Institute of Ceramic Engineering & Technology
233-5, Gasan-Dong,
Guemcheon-Gu, Seoul, 153-801,
South Korea
Tel.:+82-10-3282-2468
Fax: +82-2-3282-7773
E-mail:jwyoo@kicet.re.kr
4.Professor B. Viswanthan
Head, National Center for Catalysis Research
Department of Chemistry
Indian Institute of Technology
Chennai 600 036
Tamil Nadu, India.
Tel./Fax: +91-44-2257 8250
E-mail: bvnathan@iitm.ac.in
5.Dr. Paul Meriaudeau
DR1, Oxides group
Institut de Recherches sur la Catalyse
2, Albert Einstein avenue
69626 Villeurbanne cedex, France
Tel.: +33-7244-5370, Fax:: +33-7244-5399
E-mail: paul.meriaudeau@catalyse.univ-lyon1.fr
