Oxidative dehydrogenation of isobutane over vanadia catalysts supported by titania nanoshapes

Oxidative dehydrogenation of isobutane over vanadia catalysts supported by titania nanoshapes

Type	Journal Article
Author	Shannon Kraemer
Author	Adam J. Rondinone
URL	http://www.sciencedirect.com/science/article/pii/S0920586115006653
Series	Special Issue in Honour of Professor Eli Ruckenstein’s Contribution to Catalysis
Volume	263
Pages	84-90
Publication	Catalysis Today
Date	April 1, 2016
Abstract	Support plays a complex role in catalysis by supported metal oxides. The exact support effect remains elusive. One approach understanding support effect is to utilize model support systems. Researchers used time titania nanoshapes as the model supports and investigated how the variation of surface structure of the support (titania, TiO2) impacts the catalysis of supported oxide (vanadia, VOx). Results revealed that the shape of TiO2 support does not pose evident effect on either the structure of surface VOx species or the catalytic performance of surface VOx species in isobutane ODH reaction. This insignificant support shape effect was ascribed to the small difference in the surface oxygen vacancy formation energy among the different TiO2 surfaces and the multi-faceting nature of the TiO2 nanoshapes.