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Start Over Author "Anjum, Dalaver H." Journal chemcatchem
5 results on '"Anjum, Dalaver H."'

3. Controlled Surface Segregation Leads to Efficient Coke‐Resistant Nickel/Platinum Bimetallic Catalysts for the Dry Reforming of Methane

Author

Li, Lidong, primary, Zhou, Lu, additional, Ould‐Chikh, Samy, additional, Anjum, Dalaver H., additional, Kanoun, Mohammed B., additional, Scaranto, Jessica, additional, Hedhili, Mohamed N., additional, Khalid, Syed, additional, Laveille, Paco V., additional, D'Souza, Lawrence, additional, Clo, Alain, additional, and Basset, Jean‐Marie, additional

Published
2015
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5. VO x/SiO2 Catalyst Prepared by Grafting VOCl3 on Silica for Oxidative Dehydrogenation of Propane.

Author

Zhu, Haibo, Ould ‐ Chikh, Samy, Dong, Hailin, LlorENs, Isabelle, Saih, Youssef, Anjum, Dalaver H., Hazemann, Jean ‐ Louis, and Basset, Jean ‐ Marie

Subjects
CATALYSTS, CATALYSIS, PROPENE, SILICA, OXIDATIVE dehydrogenation, RAMAN spectroscopy
Abstract

The VO x/SiO2 catalysts for oxidative dehydrogenation of propane were synthesized by a simple grafting method. The VOCl3 was first grafted at the surface of SiO2, which was dehydrated at different temperature (from 200 to 1000 °C). The formed grafted complexes were then calcined in air, leading to the formation of VO x/SiO2 catalysts. The synthesized catalysts were characterized by nitrogen adsorption, SEM, Raman spectroscopy, temperature-programmed reduction, and extended X-ray absorption fine structure analysis. The SiO2 pretreatment temperature has an evident effect on the loading and dispersion of VO x on SiO2, which finally affects their catalytic performance. High SiO2 treatment temperature is beneficial to dispersing the vanadium oxide species at the SiO2 surface. These materials are efficient catalysts for the catalytic oxidative dehydrogenation of propane to propylene. The best selectivity to propylene is achieved on the VO x/SiO2-(1000) catalyst. The high selectivity and activity are well maintained for three days catalytic reaction. [ABSTRACT FROM AUTHOR]

Published
2015
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