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C
D. K. Dumbre, Choudhary, V. R., Patil, N. S., Uphade, B. S., and Bhargava, S. Kumar, Calcium oxide supported gold nanoparticles as catalysts for the selective epoxidation of styrene by t-butyl hydroperoxide, Journal of Colloid and Interface Science, vol. 415, pp. 111-116, 2014.
V. R. Choudhary, Mondal, K. C., Mamman, A. Singh, and Joshi, U. A., Carbon-free dry reforming of methane to syngas over NdCoO3 perovskite-type mixed metal oxide catalyst, Catalysis Letters, vol. 100, no. 3-4, pp. 271-276, 2005.
V. R. Choudhary and Mondal, K. C., CO2 reforming of methane combined with steam reforming or partial oxidation of methane to syngas over NdCoO3 perovskite-type mixed metal-oxide catalyst, Applied Energy, vol. 83, no. 9, pp. 1024-1032, 2006.
V. R. Choudhary, Mondal, K. C., and Choudhary, T. V., CO2 reforming of methane to syngas over CoOx/MgO supported on low surface area macroporous catalyst carrier: Influence of Co loading and process conditions, Industrial & Engineering Chemistry Research, vol. 45, no. 13, pp. 4597-4602, 2006.
K. C. Mondal, Choudhary, V. R., and Joshi, U. A., CO2 reforming of methane to syngas over highly active and stable supported CoOx (accompanied with MgO, ZrO2 or CeO2) catalysts, Applied Catalysis A-General, vol. 316, no. 1, pp. 47-52, 2007.
D
V. R. Choudhary, Samanta, C., and Jana, P., Decomposition and/or hydrogenation of hydrogen peroxide over Pd/Al2O3 catalyst in aqueous medium: factors affecting the rate of H2O2 destruction in presence of hydrogen, Applied Catalysis A-General, vol. 332, no. 1, pp. 70-78, 2007.
C. Samanta and Choudhary, V. R., Direct formation of H2O2 from H-2 and O-2 and decomposition/hydrogenation of H2O2 in aqueous acidic reaction medium over halide-containing Pd/SiO2 catalytic system, Catalysis Communications, vol. 8, no. 12, pp. 2222-2228, 2007.
V. R. Choudhary, Jana, P., and Bhargava, S. Kumar, Direct H(2)-to-H(2)O(2) oxidation in aqueous acidic medium containing Br promoter over Pd/Al(2)O(3) and Pd/C catalysts thermally pretreated under different conditions, Catalysis Letters, vol. 125, no. 3-4, pp. 296-301, 2008.
V. R. Choudhary and Jana, P., Direct H-2-to-H2O2 oxidation over highly active/selective Br-F-Pd/Al2O3 catalyst in aqueous acidic medium: Influence of process conditions on the H2O2 formation, Applied Catalysis A-General, vol. 352, no. 1-2, pp. 35-42, 2009.
V. R. Choudhary and Jana, P., Direct oxidation of H-2 to H2O2 over Br and F-promoted Pd/Al2O3 in aqueous acidic medium: influence of the concentration of Br and F and the method of incorporation of the two halogens in the catalyst on their beneficial synergetic effect on the net H2O2, Applied Catalysis A-General, vol. 329, pp. 79-85, 2007.
V. R. Choudhary and Jana, P., Direct oxidation of H-2 to H2O2 over different supported PdO catalysts in aqueous acidic medium: Influence of the reduction, calcination temperature and support of the catalyst on its net H2O2 formation activity, Catalysis Communications, vol. 9, no. 7, pp. 1624-1629, 2008.
V. R. Choudhary, Samanta, C., and Choudhary, T. V., Direct oxidation of H-2 to H2O2 over Pd-based catalysts: influence of oxidation state, support and metal additives, Applied Catalysis A-General, vol. 308, pp. 128-133, 2006.
C. Samanta and Choudhary, V. R., Direct oxidation of H-2 to H2O2 over Pd/CeO2 catalyst under ambient conditions: influence of halide ions, Chemical Engineering Journal, vol. 136, no. 2-3, pp. 126-132, 2008.
V. R. Choudhary and Jana, P., Direct oxidation of H-2 to H2O2 over PdO/Al2O3 catalysts in aqueous acidic medium: influence on H2O2 formation of Pd loading, calcination temperature and reduction of catalyst and presence of halide anions, Catalysis Communications, vol. 9, no. 14, pp. 2371-2375, 2008.
V. R. Choudhary, Ingole, Y. V., Samanta, C., and Jana, P., Direct oxidation of hydrogen to hydrogen peroxide over Pd (or PdO)/Al2O3 in aqueous reaction medium: influence of different acids and halide anions in reaction medium on formation and destruction of H2O2, Industrial & Engineering Chemistry Research, vol. 46, no. 25, pp. 8566-8573, 2007.
C. Samanta and Choudhary, V. R., Direct synthesis of H2O2 from H-2 and O-2 over Pd/H-beta catalyst in an aqueous acidic medium: influence of halide ions present in the catalyst or reaction medium on H2O2 formation, Catalysis Communications, vol. 8, no. 1, pp. 73-79, 2007.
C. Samanta and Choudhary, V. R., Direct synthesis of H2O2 from H-2 andO(2) and decomposition/hydrogenation of H2O2 in an aqueous acidic medium over halide-modified Pd/Al(2)O3 catalysts, Applied Catalysis A-General, vol. 330, pp. 23-32, 2007.
G
V. R. Choudhary and Jha, R., GaAlCl(x)-grafted Mont.K-10 clay: highly active and stable solid catalyst for the friedel-crafts type benzylation and acylation reactions, Catalysis Communications, vol. 9, no. 6, pp. 1101-1105, 2008.
V. R. Choudhary and Jha, R., GaClx- or GaAlClx-grafted Si-MCM-41: highly active and moisture insensitive/stable catalyst for the acylation and benzylation of benzene, naphthalene and substituted benzenes, Applied Catalysis A-General, vol. 333, no. 1, pp. 42-48, 2007.
V. R. Choudhary, Jana, P., and Samanta, C., Generation of hydrogen peroxide via the selective reduction of oxygen by hydrazine sulfate over Br-promoted Pd/Al2O3 catalyst in an aqueous medium at ambient conditions, Applied Catalysis A-General, vol. 323, pp. 202-209, 2007.
V. R. Choudhary, Dhar, A., Jana, P., Jha, R., and Uphade, B. S., Green process for chlorine-free benzaldehyde from the solvent-free oxidation of benzyl alcohol with molecular oxygen over a supported nano-size gold catalyst, Green Chemistry, vol. 7, no. 11, pp. 768-770, 2005.
D. K. Dumbre, Wakharkar, R. D., and Choudhary, V. R., Greener ullmann-type coupling of aryl halides for preparing biaryls using reusable Pd/ZrO2 catalyst, Synthetic Communications, vol. 41, no. 2, p. PII 931249796, 2011.
H
V. R. Choudhary, Jha, R., and Choudhari, P. A., Highly active and reusable catalyst from Fe-Mg-hydrotalcite anionic clay for friedel-crafts type benzylation reactions, Journal of Chemical Sciences, vol. 117, no. 6, pp. 635-639, 2005.
V. R. Choudhary, Highly efficient catalyst derived from Ni-Fe-hydrotalcite for solvent-free O- or S-acetylation of alcohols, phenols and thiols at room temperature, Proceedings of the National Academy of Sciences India Section A-Physical Sciences, vol. 83, no. 1, pp. 15-19, 2013.
V. R. Choudhary, Mondal, K. C., and Mamman, A. Singh, High-temperature stable and highly active/selective supported NiCoMgCeOx catalyst suitable for autothermal reforming of methane to syngas, Journal of Catalysis, vol. 233, no. 1, pp. 36-40, 2005.
V. R. Choudhary and Samanta, C., Hydrogen peroxide formation in the interaction of oxygen with boron-containing Pd catalysts prereduced by hydrazine in aqueous acidic medium containing bromide anions, Catalysis Letters, vol. 99, no. 1-2, pp. 79-81, 2005.
V. R. Choudhary, Samanta, C., and Jana, P., Hydrogenation of hydrogen peroxide over palladium/carbon in aqueous acidic medium containing different halide anions under static/flowing hydrogen, Industrial & Engineering Chemistry Research, vol. 46, no. 10, pp. 3237-3242, 2007.
I
V. R. Choudhary and Jana, P., In situ generation of hydrogen peroxide from reaction of O-2 with hydroxylamine from hydroxylammonium salt in neutral aqueous or non-aqueous medium using reusable Pd/Al2O3 catalyst, Catalysis Communications, vol. 8, no. 11, pp. 1578-1582, 2007.
V. H. Rane, Chaudhari, S. T., and Choudhary, V. R., Influence of alkali metal doping on surface properties and catalytic activity/selectivity of CaO catalysts in oxidative coupling of methane, Journal of Natural Gas Chemistry, vol. 17, no. 4, pp. 313-320, 2008.
T. V. Choudhary, Kinage, A., Banerjee, S., and Choudhary, V. R., Influence of hydrothermal pretreatment on acidity and activity of H-GaAlMFI zeolite for the propane aromatization reaction, Microporous and Mesoporous Materials, vol. 87, no. 1, pp. 23-32, 2005.
T. V. Choudhary, Banerjee, S., and Choudhary, V. R., Influence of PdO content and pathway of its formation on methane combustion activity, Catalysis Communications, vol. 6, no. 2, pp. 97-100, 2005.
V. R. Choudhary, Jha, R., and Narkhede, V. S., In-Mg-hydrotalcite anionic clay as catalyst or catalyst precursor for friedel-crafts type benzylation reactions, Journal of Molecular Catalysis A-Chemical, vol. 239, no. 1-2, pp. 76-81, 2005.
O
V. H. Tillu, Dumbre, D. K., Wakharkar, R. D., and Choudhary, V. R., One-pot three-component kabachnik-fields synthesis of alpha-aminophosphonates using H-beta zeolite catalyst, Tetrahedron Letters, vol. 52, no. 8, pp. 863-866, 2011.
V. R. Choudhary, Dumbre, D. K., and Bhargava, S. Kumar, Oxidation of benzyl alcohol to benzaldehyde by tert-butyl hydroperoxide over nanogold supported on TiO2 and other transition and rare-earth metal oxides, Industrial & Engineering Chemistry Research, vol. 48, no. 21, pp. 9471-9478, 2009.
V. H. Rane, Chaudhari, S. T., and Choudhary, V. R., Oxidative coupling of methane over La-promoted CaO catalysts: influence of precursors and catalyst preparation method, Journal of Natural Gas Chemistry, vol. 19, no. 1, pp. 25-30, 2010.
V. R. Choudhary, Mondal, K. C., and Choudhary, T. V., Oxy-CO2 reforming of methane to syngas over CoOx/CeO2/SA-5205 catalyst, Energy & Fuel, vol. 20, no. 5, pp. 1753-1756, 2006.
V. R. Choudhary, Mondal, K. C., and Choudhary, T. V., Oxy-CO2 reforming of methane to syngas over CoOx/MgO/SA-5205 catalyst, Fuel, vol. 85, no. 17-18, pp. 2484-2488, 2006.
V. R. Choudhary, Mondal, K. C., and Choudhary, T. V., Oxy-methane reforming over high temperature stable NiCoMgCeOx and NiCoMgOx supported on zirconia-haffnia catalysts: accelerated sulfur deactivation and regeneration, Catalysis Communications, vol. 8, no. 3, pp. 561-564, 2007.
S
V. R. Choudhary, Jha, R., and Jana, P., Selective epoxidation of styrene to styrene oxide by TBHP using simple transition metal oxides (NiO, CoO or MoO3) as highly active environmentally-friendly catalyst, Catalysis Communications, vol. 10, no. 2, pp. 205-207, 2008.
V. R. Choudhary, Mondal, K. C., and Mulla, S. Abdul Rash, Simultaneous conversion of methane and methanol into gasoline over bifunctional Ga-, Zn-, In-, and/or Mo-modified ZSM-5 zeolites, Angewandte Chemie-International Edition, vol. 44, no. 28, pp. 4381-4385, 2005.
V. H. Tillu, Dumbre, D. K., Borate, H. B., Wakharkar, R. D., and Choudhary, V. R., Solvent-free one-pot synthesis of sulfonephthaleins from saccharin and phenols, Synthetic Communications, vol. 42, no. 8, pp. 1101-1107, 2012.
V. R. Choudhary, Dumbre, D. K., and Narkhede, V. S., Solvent-free oxidation of aldehydes to acids by TBHP using environmental-friendly -exchanged Mg-Al hydrotalcite catalyst, Journal of Chemical Sciences, vol. 124, no. 4, pp. 835-839, 2012.
V. R. Choudhary, Jha, R., and Jana, P., Solvent-free selective oxidation of benzyl alcohol by molecular oxygen over uranium oxide supported nano-gold catalyst for the production of chlorine-free benzaldehyde, Green Chemistry, vol. 9, no. 3, pp. 267-272, 2007.
V. R. Choudhary and Dumbre, D. K., Solvent-free selective oxidation of benzyl alcohol to benzaldehyde by tert-butyl hydroperoxide over U3O8-supported nano-gold catalysts, Applied Catalysis A-General, vol. 375, no. 2, pp. 252-257, 2010.
V. R. Choudhary and Dumbre, D. K., Solvent-free selective oxidation of primary alcohols-to-aldehydes and aldehydes-to-carboxylic acids by molecular oxygen over MgO-supported nano-gold catalyst, Catalysis Communications, vol. 13, no. 1, pp. 82-86, 2011.
V. R. Choudhary, Jha, R., Chaudhari, N. K., and Jana, P., Supported copper oxide as a highly active/selective catalyst for the epoxidation of styrene by TBHP to styrene oxide, Catalysis Communications, vol. 8, no. 10, pp. 1556-1560, 2007.
V. R. Choudhary and Dumbre, D. K., Supported nano-gold catalysts for epoxidation of styrene and oxidation of benzyl alcohol to benzaldehyde, Topics in Catalysis, vol. 52, no. 12, pp. 1677-1687, 2009.
D. K. Dumbre, Yadav, P. N., Bhargava, S. Kumar, and Choudhary, V. R., Suzuki-Miyaura cross-coupling reaction between aryl halides and phenylboronic acids over gold nano-particles supported on MgO (or CaO) and other metal oxides, Journal of Catalysis, vol. 301, pp. 134-140, 2013.
V. R. Choudhary and Jana, P., Synergetic effect of two halogen promoters present in acidic reaction medium or catalyst on the H2O2 formation (in H-2-to-H2O2 oxidation) and destruction over Pd/C (or Al2O3) catalyst, Journal of Catalysis, vol. 246, no. 2, pp. 434-439, 2007.
H. B. Borate, Dumbre, D. K., Wakharkar, R. D., and Choudhary, V. R., Synthesis of substituted styrenes and stilbenes mediated by palladium on zirconia, Journal of Chemical Research-S, no. 9, pp. 495-499, 2008.