Interaction of surface- and bulk-oxygen in Mo/V-mixed oxides during the partial oxidation of an unsaturated Aldehyde

Mixed oxides based on molybdenum and vanadium are used as catalysts in partial oxidation reactions. Transient examinations, in particular the concentration programmed reduction method with acrolein, proofs the presence of at least two different oxygen species participating in the reaction. A mechanistic view involving surface- and bulk-oxygen as well as a simulation are given.