Hydrogen spill-over effect on Pt/WO3 anode catalysts

Abstract The experimental evidence and mechanism of ‘hydrogen spill-over’ on Pt/WO3 is reviewed and the application of this catalyst system for the evolution of hydrogen, anodic oxidation, hydrogenation and the anodic oxidation of small molecules and impure H2 is discussed. It is suggested that further work on preparation techniques to ensure the maximisation of Pt/WO3 interfaces and other analogous systems should lead to even higher catalyst activity and applications.