biblio

Filters: Author is Umbarkar, Shubhangi B.  [Clear All Filters]
2005
M. Vijayaraj, Murugan, B., Umbarkar, S. B., Hegde, S. G., and Gopinath, C. S., “Insight into the mechanism of selective mono-N-methylation of aniline on Cu1-xZnxFe2O4: a DRIFTS study”, Journal of Molecular Catalysis A - Chemical, vol. 231, no. 1-2, pp. 169-180, 2005.
A. V. Biradar, Umbarkar, S. B., and Dongare, M. K., “Transesterification of diethyl oxalate with phenol using MoO3/SiO2 catalyst”, Applied Catalysis A-General, vol. 285, no. 1-2, pp. 190-195, 2005.
S. K. Maurya, Patil, P., Umbarkar, S. B., Gurjar, M. K., Dongare, M. K., Rudiger, S., and Kemnitz, E., “Vapor phase oxidation of 4-fluorotoluene over vanadia-titania catalyst”, Journal of Molecular Catalysis A - Chemical, vol. 234, no. 1-2, pp. 51-57, 2005.
2006
S. M. Mathew, Biradar, A. V., Umbarkar, S. B., and Dongare, M. K., “Regioselective nitration of cumene to 4-nitro cumene using nitric acid over solid acid catalyst”, Catalysis Communications, vol. 7, no. 6, pp. 394-398, 2006.
2007
J. G. Chandorkar, Umbarkar, S. B., Rode, C. V., Kotwal, V. B., and Dongare, M. K., “Synthesis of tinidazole by condensation-oxidation sequence using MoO3/SiO2 bifunctional catalyst”, Catalysis Communications, vol. 8, no. 10, pp. 1550-1555, 2007.
2008
A. V. Biradar, Sathe, B. R., Umbarkar, S. B., and Dongare, M. K., “Selective cis-dihydroxylation of olefins using recyclable homogeneous molybdenum acetylide catalyst”, Journal of Molecular Catalysis A-Chemical, vol. 285, no. 1-2, pp. 111-119, 2008.
A. V. Biradar, Kotbagi, T. V., Dongare, M. K., and Umbarkar, S. B., “Selective N-oxidation of aromatic amines to nitroso derivatives using a molybdenum acetylide oxo-peroxo complex as catalyst”, Tetrahedron Letters, vol. 49, no. 22, pp. 3616-3619, 2008.
2009
S. B. Umbarkar, Kotbagi, T. V., Biradar, A. V., Pasricha, R., Chanale, J., Dongare, M. K., Mamede, A. - S., Lancelot, C., and Payen, E., “Acetalization of glycerol using mesoporous MoO3/SiO2 solid acid catalyst”, Journal of Molecular Catalysis A-Chemical, vol. 310, no. 1-2, pp. 150-158, 2009.
A. V. Biradar, Dongare, M. K., and Umbarkar, S. B., “Selective oxidation of aromatic primary alcohols to aldehydes using molybdenum acetylide oxo-peroxo complex as catalyst”, Tetrahedron Letters, vol. 50, no. 24, pp. 2885-2888, 2009.
N. Jagtap, Umbarkar, S. B., Miquel, P., Granger, P., and Dongare, M. K., “Support modification to improve the sulphur tolerance of Ag/Al2O3 for SCR of NOx with propene under lean-burn conditions”, Applied Catalysis B-Environmental, vol. 90, no. 3-4, pp. 416-425, 2009.
R. Pasricha, Bala, T., Biradar, A. V., Umbarkar, S. B., and Sastry, M., “Synthesis of catalytically active porous platinum nanoparticles by transmetallation reaction and proposition of the mechanism”, Small, vol. 5, no. 12, pp. 1467-1473, 2009.
2010
P. Miguel, Granger, P., Jagtap, N., Umbarkar, S. B., Dongare, M. K., and Dujardin, C., “NO reduction under diesel exhaust conditions over Au/Al2O3 prepared by deposition-precipitation method”, Journal of Molecular Catalysis A-Chemical, vol. 322, no. 1-2, pp. 90-97, 2010.
R. Akbarzadeh, Umbarkar, S. B., Sonawane, R. S., Takle, S., and Dongare, M. K., “Vanadia-titania thin films for photocatalytic degradation of formaldehyde in sunlight”, Applied Catalysis A-General, vol. 374, no. 1-2, pp. 103-109, 2010.
2011
S. V. Bhosale, Kalyankar, M. B., Nalage, S. V., Bhosale, D. S., Pandhare, S. L., Kotbagi, T. V., Umbarkar, S. B., and Dongare, M. K., “One-pot synthesis of 2,4,5-trisubstituted imidazoles using MoO3/SiO2, an efficient and recyclable catalyst”, Synthetic Communications, vol. 41, no. 5, p. PII 932996516, 2011.
2012
D. L. Nguyen, Umbarkar, S. B., Dongare, M. K., Lancelot, C., Girardon, J. S., Dujardin, C., and Granger, P., “Deposition-precipitation versus anionic-exchange Au/Al2O3 catalysts: a comparative investigation towards the selective reduction of NOx”, Catalysis Communications, vol. 26, pp. 225-230, 2012.
D. L. Nguyen, Gillot, S., Souza, D. O., Blanchard, P., Lamonier, C., Berrier, E., Kotbagi, T. V., Dongare, M. K., Umbarkar, S. B., Cristol, S., Payen, E., and Lancelot, C., “One-pot sol-gel preparation for efficient cobalt-molybdenum-titania hydrotreating catalysts”, Chemcatchem, vol. 4, no. 12, pp. 2112-2120, 2012.
M. G. Chandgude, Biradar, A. V., Kotbagi, T. V., Puranik, V. G., Dongare, M. K., and Umbarkar, S. B., “Selective oxidation of nonrefractory and refractory sulfides by cyclopentadienyl molybdenum acetylide complexes as efficient catalysts”, Catalysis Letters, vol. 142, no. 11, pp. 1352-1360, 2012.
T. Kotbagi, Nguyen, D. Luan, Lancelot, C., Lamonier, C., Thavornprasert, K. - A., Wenli, Z., Capron, M., Jalowiecki-Duhamel, L., Umbarkar, S. B., Dongare, M. K., and Dumeignil, F., “Transesterification of diethyl oxalate with phenol over sol-gel MoO3/TiO2 catalysts”, Chemsuschem, vol. 5, no. 8, pp. 1467-1473, 2012.
2013
V. C. Ghantani, Lomate, S. T., Dongare, M. K., and Umbarkar, S. B., “Catalytic dehydration of lactic acid to acrylic acid using calcium hydroxyapatite catalysts”, Green Chemistry, vol. 15, no. 5, pp. 1211-1217, 2013.
T. V. Kotbagi, Biradar, A. V., Umbarkar, S. B., and Dongare, M. K., “Isolation, characterization, and identification of catalytically active species in the MoO3/SiO2 catalyst during solid acid catalyzed reactions”, Chemcatchem, vol. 5, no. 6, pp. 1531-1537, 2013.
D. - L. Nguyen, Umbarkar, S. B., Dongare, M. K., Lancelot, C., Girardon, J. S., Dujardin, C., and Granger, P., “Promising stability of gold-based catalysts prepared by direct anionic exchange for DeNO (x) applications in lean burn conditions”, Topics in Catalysis, vol. 56, no. 1-8, pp. 157-164, 2013.
2014
P. M. More, Jagtap, N., Kulal, A. B., Dongare, M. K., and Umbarkar, S. B., “Magnesia doped Ag/Al2O3 - sulfur tolerant catalyst for low temperature HC-SCR of NOx”, Applied Catalysis B-Environmental, vol. 144, pp. 408-415, 2014.
S. L. Pandhare, Jadhao, R. R., Puranik, V. G., Joshi, P. V., Capet, F., Dongare, M. K., Umbarkar, S. B., Michon, C., and Agbossou-Niedercorn, F., “Molybdenum(VI) dioxo complexes for the epoxidation of allylic alcohols and olefins”, Journal of Organometallic Chemistry, vol. 772, no. 16, pp. 271-279, 2014.
V. C. Ghantani, Dongare, M. K., and Umbarkar, S. B., “Nonstoichiometric calcium pyrophosphate: a highly efficient and selective catalyst for dehydration of lactic acid to acrylic acid”, RSC Advances, vol. 4, no. 63, pp. 33319-33326, 2014.
P. Chandra, Doke, D. S., Umbarkar, S. B., and Biradar, A. V., “One-pot synthesis of ultrasmall MoO3 nanoparticles supported on SiO2, TiO2, and ZrO2 nanospheres: an efficient epoxidation catalyst”, Journal of Materials Chemistry A, vol. 2, no. 44, pp. 19060-19066, 2014.
V. R. Acham, Biradar, A. V., Dongare, M. K., Kemnitz, E., and Umbarkar, S. B., “Palladium nanoparticles supported on magnesium hydroxide fluorides: a selective catalyst for olefin hydrogenation”, ChemCatChem, vol. 6, no. 11, pp. 3182-3191, 2014.
2015
P. M. More, Nguyen, D. L., Granger, P., Dujardin, C., Dongare, M. K., and Umbarkar, S. B., “Activation by pretreatment of Ag-Au/Al2O3 bimetallic catalyst to improve low temperature HC-SCR of NOx for lean burn engine exhaust”, Applied Catalysis B-Environmental, vol. 174, pp. 145-156, 2015.
W. Fang, Paul, S., Capron, M., Biradar, A. V., Umbarkar, S. B., Dongare, M. K., Dumeignil, F., and Jalowiecki-Duhamel, L., “Highly loaded well dispersed stable Ni species in NiXMg2AlOY nanocomposites: application to hydrogen production from bioethanol”, Applied Catalysis B-Environmental, vol. 166, pp. 485-496, 2015.
P. M. More, Nguyen, D. L., Dongare, M. K., Umbarkar, S. B., Nuns, N., Girardon, J. S., Dujardin, C., Lancelot, C., Mamede, A. - S., and Granger, P., “Rational preparation of Ag and Au bimetallic catalysts for the hydrocarbon-SCR of NOx: sequential deposition vs. coprecipitation method”, Applied Catalysis B-Environmental, vol. 162, pp. 11-20, 2015.
P. Chandra, Doke, D. S., Umbarkar, S. B., Vanka, K., and Biradar, A. V., “Silica microspheres containing high density surface hydroxyl groups as efficient epoxidation catalysts”, RSC Advances, vol. 5, no. 27, pp. 21125-21131, 2015.
2016
V. R. Acham, Dongare, M. K., Kemnitz, E., and Umbarkar, S. B., “Epoxide ring-opening reaction by using sol-gel-synthesized palladium supported on a strontium hydroxyl fluoride catalyst”, Comptes Rendus Chimie, vol. 19, no. 10, pp. 1237-1246, 2016.
A. B. Kulal, Dongare, M. K., and Umbarkar, S. B., “Sol-gel synthesised WO3 nanoparticles supported on mesoporous silica for liquid phase nitration of aromatics”, Applied Catalysis B-Environmental, vol. 182, pp. 142-152, 2016.
P. M. More, Umbarkar, S. B., and Dongare, M. K., “Template-free sol-gel synthesis of high surface area mesoporous silica based catalysts for esterification of di-carboxylic acids”, Comptes Rendus Chimie, vol. 19, no. 10, pp. 1247-1253, 2016.
S. S. Kale, Armbruster, U., Eckelt, R., Bentrup, U., and Umbarkar, S. B., “Understanding the role of Keggin type heteropolyacid catalysts for glycerol acetylation using toluene as an entrainer”, Applied Catalysis A-General, vol. 527, pp. 9-18, 2016.
2017
D. S. Doke, Umbarkar, S. B., Gawande, M. B., Zbori, R., and Biradar, A. V., “Environmentally benign bioderived carbon microspheres-supported molybdena nanoparticles as catalyst for the epoxidation reaction”, ACS Sustainable Chemistry & Engineering, vol. 5, no. 1, pp. 904-910, 2017.
R. S. Kokane, Acham, V. R., Kulal, A. B., Kemnitz, E., Dongare, M. K., and Umbarkar, S. B., “Palladium supported on fluorinated magnesium hydroxide: an efficient catalyst for hydrogenation under ambient conditions”, Chemistryselect, vol. 2, no. 32, pp. 10618-10627, 2017.
2018
P. Manjunathan, Marakatti, V. S., Chandra, P., Kulal, A. B., Umbarkar, S. B., Ravishankar, R., and Shanbhag, G. V., “Mesoporous tin oxide: an efficient catalyst with versatile applications in acid and oxidation catalysis”, Catalysis Today, vol. 309, pp. 61-76, 2018.
2019
A. V. - H. Soares, Kale, S. S., Armbruster, U., Passos, F. B., Umbarkar, S. B., Dongare, M. K., and Martin, A., “Glycerol acetylation considering competing dimerization”, International Journal of Chemical Kinetics, vol. 51, no. 8, pp. 634-640, 2019.
2021
H. Ilbeygi, Sawant, D. P., Ruban, S. M., Reshma, K. S., Umbarkar, S. B., Halligudi, S. B., and Vinu, A., “Direct synthesis of mesoporous siliceous phosphotungstic acid and its superior catalytic activity on the cyclohexylation of phenol”, Journal of Physical Chemistry C , vol. 125, no. 12, pp. 6723-6734, 2021.
R. Kokane, Corre, Y., Kemnitz, E., Dongare, M. K., Agbossou-Niedercorn, F., Michon, C., and Umbarkar, S. B., “Palladium supported on magnesium hydroxyl fluoride: an effective acid catalyst for the hydrogenation of imines and N-heterocycles”, New Journal of Chemistry, vol. 45, no. 41, pp. 19572-19583, 2021.
2023
M. M. Kasabe, Kotkar, V. R., Dongare, M. K., and Umbarkar, S. B., “Phenol hydrogenation to cyclohexanol catalysed by palladium supported on CuO/CeO2”, Chemistry-an asian jounrnal, vol. 18, no. 11, 2023.
2024
S. Mehta, Kasabe, M., Umbarkar, S. B., and Joshi, K., “From digital blueprint to chemical reality: methanol to formaldehyde at ambient conditions”, Applied Surface Science, vol. 669, p. 160527, 2024.
2025
P. V. Jadhav, Mahajan, D., Patil, P., Umbarkar, S. B., and Pol, H., “Enhancement of mechanical and rheological properties of PA-12 through silane modification”, Bulletin of Materials Science, vol. 48, no. 4, p. 146, 2025.
P. Narayan Kalbande, Swapna, B., Sudarsanam, P., and Umbarkar, S. B., “Liquid phase nitration of benzene to nitrobenzene using a mesoporous MoO3/Nb2O5 nanocatalyst”, Catalysis Letters, vol. 155, no. 4, p. 141, 2025.