Synergy and Anti-Synergy between Palladium and Gold in Nanoparticles Dispersed on a Reducible Support.

ABSTRACT: Highly active and stable bimetallic Au-Pd catalysts have been extensively studied for several liquid-phase oxidation reactions in recent years, but there are far fewer reports on the use of these catalysts for low-temperature gas-phase reactions. Here we initially established the presence of a synergistic effect in a range of bimetallic Au-Pd/CeZrO₄ catalysts, by measuring their activity for selective oxidation of benzyl alcohol. The catalysts were then evaluated for low-temperature WGS, CO oxidation, and formic acid decomposition, all of which are believed to be mechanistically related. A strong anti-synergy between Au and Pd was observed for these reactions, whereby the introduction of Pd to a monometallic Au catalyst resulted in a significant decrease in catalytic acti

SUBMITTER: Carter JH 

PROVIDER: S-EPMC5154324 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature