Bhari completed his Ph. D in Indian institute of chemical technology, Hyderabad, India. His main research is hydrogenation and dehydrogenation reaction using copper based catalyst. In doctoral work he studied the hydrogenation of furfural, dehydrogenation cyclohexanol reaction and simultaneous hydrogenation & dehydrogenation reactions which has carried out on Cu/MgO catalyst by co precipitation method with different copper loadings, temperature, GHSV, method of preparation, effect of precipitating agent in the preparation of Cu/MgO catalysts. Comparison of activities for hydrogenation & dehydrogenation reactions over MgO, MgO-Al2O3 & MgO-Cr2O3 HT or mixed oxides supported Cu catalyst, different promoters such as Co, Zn, Fe, Cr, Pd and Ni over Cu/MgO catalysts.
He involved many projects such as hydrodechlorination of CH2F2 to CCl2F2 – (CFC to HFC). Hydrodechlorination of CFCs is rated as one of the best among all the CFC disposal methods as it yields hydrochlorofluorocarbons. Mg–Al and Mg–Cr hydrotalcites supported Pd catalysts and different supports were used for CFC reaction. In electro chemical deposition method controlling the microorganisms in water using Ag/C catalyst. The catalytic ability of the silver deposited on carbon by electro-deposition route is more effective than that of silver deposited on carbon by conventional impregnation technique controlling the microorganisms in water. Aromatization of isophorone transformation, Aromatization of isophorone to 3,5-dimethyl phenol is an important reaction in view of its wide industrial applications. 3,5-Dimethyl phenol is used as a disinfectant and as a starting material for the preparation of resins, Vitamin E and other chemicals like dyes, agrochemicals, pharmaceuticals and aroma chemicals. In weak/moderate basic sites to abstract a proton to form an enolate ion followed by involvement of weak/moderate acid sites for dienone–phenol rearrangement to yield aromatization products and involvement of strong acidic sites for yielding decomposition products.
Removal of fluoride ions from water by using carbon supported activated alumina catalysts and Synthesis of mesoporous BaSO4 nano material by dispersion & spray pyrolysis method and Pt support on BaSO4 applicable at low temperature SO3 decomposition. Hydrogenolysis of glycerol to 1,3-propanediol and 1,2propanediol.
In postdoctoral research he worked on the preparation of high surface area mesoporous BaSO4 nano materials by dispersion and spray pyrolysis method support on platinum precursor for SO3 decomposition to hydrogen production. Preparation of mesostructured BaSO4 with high surface area by dispersion method and its characterization. Pt support on mesoporous BaSO4 prepared by spray pyrolysis applicable at low temperature SO3 decomposition. Preparation & characterization of Fe/Cu/Ti/Al2O3 composite granules for SO3 decomposition to assist hydrogen production. Hydrogenolysis of glycerol to 1,3-propanediol and 1,2-propanediol (biomass application).
In his career he published 12 international publications and 3 US patents and attended many international and national conferences. He got Best poster presentation award on 17th international symposium conducted by catalysis society of India.
At present, Bhari is involved in a research on chemical activation of carbon dioxide and methane to produce hydrogen and syn gas (Dry reforming of methane to hydrogen).
Heterogeneous catalysis
Hydrogenation & Dehydrogenation reactions
Coupling reactions (Hydrogenation & Dehydrogenation)
Mesoporous nano materials
Materials Science and Surface science
H2 production and storage materials
Green processes development for fine chemicals synthesis
A. Selected Publications
1. Catalytic Decomposition of SO3 over Pt/BaSO4 Materials in Sulfur-Iodine Cycle for Hydrogen Production. Bhari Mallanna Nagaraja, Kwang Deog Jung, Byoung Sung Ahn, Haznan Abimanyu, and Kye Sang Yoo*.
Industrial & Engineering Chemistry Research (2009) (Article in press).
2.Synthesis of Cu/Fe/Ti/Al2O3 Composite Granules for SO3 Decomposition in SI Cycle.
Bhari Mallanna Nagaraja, Kwang Deog Jung and Kye Sang Yoo*.
Catalysis letters (2009) (Article in press).
3. Preparation of mesostructured barium sulfate with high surface area by dispersion method and its characterization. Bhari Mallanna Nagaraja, Haznan Abimanyu, Kwang Deog Jung and Kye Sang Yoo*. Journal of Colloid and Interface Science 316 (2007) 645–65.
4. A highly active Cu-MgO-Cr2O3 catalyst for simultaneous synthesis of furfuryl alcohol and cyclohexanone by a novel coupling route - combination of furfural hydrogenation and cyclohexanol dehydrogenation
B.M. Nagaraja, A. H. Padmasri, P. Seetharamulu, K. Harish Reddy, B. David Raju and K.S. Rama Rao*. Journal of Molecular Catalysis 278 (2007) 29–37.
5. Vapor Phase Selective Hydrogenation of Furfural to Furfuryl Alcohol over Cu-MgO catalysts.
B.M. Nagaraja, A. H. Padmasri, B. David Raju and K.S. Rama Rao*. Journal of Molecular Catalysis A 265 (2007) 90–97.
6. Effect of Method of Preparation of Copper – Magnesium Oxide Catalyst on the Dehydrogenation of Cyclohexanol.
B.M. Nagaraja, V. Siva Kumar, V. Shashikala, A. H. Padmasri, B. David Raju and K.S. Rama Rao, Journal of Molecular Catalysis A 223 (2004) 339-345.
7. Highly efficient Ag/C catalyst prepared by electrochemical deposition method in controlling microorganism in water.
V. Siva Kumar, B.M. Nagaraja, V. Shashikala, A.H. Padmasri, M. Shakuntala Madhavendra, B. David Raju* and K.S. Rama Rao*. Journal of Molecular Catalysis A 223 (2004) 313-319.
8. A highly efficient Cu/MgO catalyst for vapour phase hydrogenation of furfural to furfuryl alcohol.
B.M. Nagaraja, V. Siva Kumar, V. Shashikala, A.H. Padmasri, B. Sreedhar, B. David Raju* and K.S. Rama Rao*. Catalysis Communications 4 (2003) 287-293.
B. International & national Patents
1. A Vapour phase catalytic process for simultaneous furfural hydrogenation and cyclohexanol dehydrogenation.
K.S. Rama Rao, B. David Raju, S. Narayanan, B.M. Nagaraja, A.H. Padmasri, V. Siva Kumar, V. Shashikala, P. Seetharamulu and S. Sreevardhan Reddy.
US Patent No. US 7,015,359B1 & Indian Patent No. 1661/DEL/2005 A
2. A process for the preparation of highly efficient silver supported on carbon covered alumina catalyst by electro-chemical deposition useful in controlling microorganism in water.
K.S. Rama Rao, B. David Raju, A.H. Padmasri, V. Siva Kumar, A.N. Ratnakar P. Seetharamulu, V. Shashikala, B.M. Nagaraja, S. Sreevardhan Reddy, P.N. Sarama, K. Krishna Prasad and S.R. Venkata Mohan.
US Patent No. 2006/0254989 A1 & Indian Patent CSIR No. 500/04.
3. A process for the preparation of highly efficient carbon supported activated alumina adsorbent for removal of fluoride ion from water.
K.S. Rama Rao, V. Shashikala, A.H. Padmasri, B. David Raju, V. Siva Kumar, B.M. Nagaraja, P. Seetharamulu, S. Sreevardhan Reddy, U.C. Kulshreshta and K.V.R Chary.
US Patent No. 2007/0210004 A1 & India patent CSIR Ref. No. 486/06.
Bhari is mostly involved in the following projects:
This project examines various types of catalysts for the dry reforming of methane to produce a synthesis gas (syngas) and/or hydrogen.
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The webpage detailing our work, on the dry reforming of methane with CO2 for the production of a syngas, has been updated today. Recent material includes observations on the efficacy of various catalysts for this process. Bhari Mallanna Nagaraja is the person with most involvement in this project, the updated material can be found here.
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