NiOx nanowires coupled to the steps of a vicinal Rh surface (see picture) display an enhanced reactivity for the oxidation reaction of CO. High-resolution photoelectron spectroscopy follows the reactant species at the surface and DFT calculations of the transition-state energies reveal reduced reaction barriers at NiOx/Rh hybrid sites.
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Surnev et al. (2010) studied this question.
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