Abstract:Supported vanadia (VOx) is a versatile catalyst for various redox processes, where ceria-supported VOx have shown to be particularly active in oxidative dehydrogenation (ODH) of alcohols. In this work, we clarify the origin of the volcano-shaped ethanol ODH activity trend for VOx/CeOx catalysts using operando quick V K- and Ce L3- edge XAS experiments performed under transient conditions. We quantitatively demonstrate that both vanadium and cerium are synergistically involved in alcohol ODH. The concentration … Show more
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