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The role of surface hydroxyls in the entropy-driven adsorption and spillover of H2 on Au/TiO2 catalysts - Nature Catalysis

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The role of surface hydroxyls in the entropy-driven adsorption and spillover of H2 on Au/TiO2 catalysts - Nature Catalysis

Hydrogen spillover involves the migration of H atom equivalents from metal nanoparticles to a support. While well documented, H spillover is poorly understood and largely unquantified. Here we measure weak, reversible H2 adsorption on Au/TiO2 catalysts, and extract the surface concentration of spilled-over hydrogen. The spillover species (H*) is best described as a loosely coupled proton/electron pair distributed across the titania surface hydroxyls.

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The role of surface hydroxyls in the entropy-driven adsorption and spillover of H2 on Au/TiO2 catalysts - Nature Catalysis

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The role of surface hydroxyls in the entropy-driven adsorption and spillover of H2 on Au/TiO2 catalysts - Nature Catalysis

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