Catalytically active and thermally stable core-shell gold-silica nanorods for CO oxidation.

ABSTRACT: Deactivation based on sintering phenomena is one of the most costly issues for the industrial application of metal nanoparticle catalysts. To address this drawback, mesoporous silica encapsulation is reported as a promising strategy to stabilize metallic nanoparticles towards use in high temperature catalytic applications. These protective shells provide significant structural support to the nanoparticles, while the mesoporosity allows for efficient transport of the reactants to the catalytically active surface of the metallic nanoparticle in the core. Here, we extend the use of gold nanorods with mesoporous silica shells by investigating their stability in the CO oxidation reaction as an example of high temperature gas phase catalysis. Gold nanorods were chosen as the model system due to

SUBMITTER: Chen Y 

PROVIDER: S-EPMC8695914 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature