caa a22 4500 445388528 CHVBK 20180317143039.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s11144-011-0373-5 doi (NATIONALLICENCE)springer-10.1007/s11144-011-0373-5 Structural and catalytic properties of V-SBA-15 for the vapor phase oxidation of diphenylmethane [Elektronische Daten] [D. Santhanaraj, C. Suresh, M. Gurulakshmi, N. Sasirekha, K. Shanthi] The influence of Si/V ratio of mesoporous V-SBA-15 on the structure and catalytic behavior has been investigated for the vapor phase oxidation of diphenylmethane (DPM) to benzophenone (BP) using CO2 free air as oxidant under atmospheric pressure. The reaction conditions were optimized for a maximum conversion of DPM and selectivity for BP on V-SBA-15 (25). These catalysts were synthesized with different Si/V ratios of 10, 25, 50, 75 and 100 by the direct hydrothermal method under mild acidic conditions and characterized by using X-ray diffraction, ICP-OES, EDAX, DRUV-Vis, photoluminescence and transmission electron microscopy techniques. It was found that a large amount of vanadium is incorporated mainly in isolated tetrahedral environment with a terminal V=O bond. Under the optimized conditions, the activity of all the catalysts were compared and found that V-SBA-15 with Si/V=25 ratio, exhibited the maximum activity. The difference in the catalytic activity is related to their physico-chemical properties. Akadémiai Kiadó, Budapest, Hungary, 2011 Vapor phase oxidation nationallicence V-SBA-15 nationallicence Direct hydrothermal nationallicence Diphenylmethane nationallicence Santhanaraj D. Department of Chemistry, Anna University, 600 025, Chennai, India aut Suresh C. Department of Chemistry, Anna University, 600 025, Chennai, India aut Gurulakshmi M. Department of Chemistry, Anna University, 600 025, Chennai, India aut Sasirekha N. Department of Chemistry, Anna University, 620 024, Tiruchirappalli, India aut Shanthi K. Department of Chemistry, Anna University, 600 025, Chennai, India aut Reaction Kinetics, Mechanisms and Catalysis Springer Netherlands 104/2(2011-12-01), 399-415 1878-5190 104:2<399 2011 104 11144 https://doi.org/10.1007/s11144-011-0373-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11144-011-0373-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Santhanaraj D. Department of Chemistry, Anna University, 600 025, Chennai, India aut NATIONALLICENCE 700 1- Suresh C. Department of Chemistry, Anna University, 600 025, Chennai, India aut NATIONALLICENCE 700 1- Gurulakshmi M. Department of Chemistry, Anna University, 600 025, Chennai, India aut NATIONALLICENCE 700 1- Sasirekha N. Department of Chemistry, Anna University, 620 024, Tiruchirappalli, India aut NATIONALLICENCE 700 1- Shanthi K. Department of Chemistry, Anna University, 600 025, Chennai, India aut NATIONALLICENCE 773 0- Reaction Kinetics, Mechanisms and Catalysis Springer Netherlands 104/2(2011-12-01), 399-415 1878-5190 104:2<399 2011 104 11144 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer