On the Promoting Effects of Te and Nb in the Activity and Selectivity of M1 MoV-Oxides for Ethane Oxidative Dehydrogenation
Daniel Melzer, Gerhard Mestl, Klaus Wanninger, Andreas Jentys, Maricruz Sanchez‐Sanchez, Johannes A. Lercher
Abstract
Abstract The pathways of ethane oxidative dehydrogenation and total combustion have been elucidated for M1 phase type Mo–V oxide catalysts with different metal composition. The ethane oxidation mechanism is not affected by the presence of Te or Nb. Conversely, the selectivity is strongly affected by stoichiometry of M1 catalysts. This is attributed to the facile oxidation of ethene to CO x upon formation of unselective VO x species in the absence of Te and Nb.
Topics & Concepts
DehydrogenationSelectivityCatalysisChemistryStoichiometryOxidative phosphorylationOxideInorganic chemistryMetalPhotochemistryOrganic chemistryBiochemistryCatalysis and Oxidation ReactionsCatalytic Processes in Materials ScienceCatalysis and Hydrodesulfurization Studies