VO x /SiO 2 Catalyst Prepared by Grafting VOCl 3 on Silica for Oxidative Dehydrogenation of Propane
Type
ArticleAuthors
Zhu, HaiboOuld-Chikh, Samy

Dong, Hailin
Llorens, Isabelle
Saih, Youssef
Anjum, Dalaver H.

Hazemann, Jean Louis
Basset, Jean-Marie

Date
2015-09-07Online Publication Date
2015-09-07Print Publication Date
2015-10Permanent link to this record
http://hdl.handle.net/10754/594247
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Show full item recordAbstract
The VOx/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 VOx/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 VOx 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 VOx/SiO2-(1000) catalyst. The high selectivity and activity are well maintained for three days catalytic reaction. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.Citation
Zhu H, Ould-Chikh S, Dong H, Llorens I, Saih Y, et al. (2015) VO x /SiO 2 Catalyst Prepared by Grafting VOCl 3 on Silica for Oxidative Dehydrogenation of Propane . ChemCatChem 7: 3332–3339. Available: http://dx.doi.org/10.1002/cctc.201500607.Publisher
WileyJournal
ChemCatChemae974a485f413a2113503eed53cd6c53
10.1002/cctc.201500607