Interfacing with silica boosts the catalysis of copper.

ABSTRACT: Metal-support interaction is one of the most important parameters in controlling the catalysis of supported metal catalysts. Silica, a widely used oxide support, has been rarely reported as an effective support to create active metal-support interfaces for promoting catalysis. In this work, by coating Cu microparticles with mesoporous SiO₂, we discover that Cu/SiO₂ interface creates an exceptional effect to promote catalytic hydrogenation of esters. Both computational and experimental studies reveal that Cu-H^δ- and SiO-H^δ+ species would be formed at the Cu-O-SiO_x interface upon H₂ dissociation, thus promoting the ester hydrogenation by stablizing the transition states. Based on the proposed catalytic mechanism, encapsulting

SUBMITTER: Xu C 

PROVIDER: S-EPMC6105597 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature