Controlling the speciation and reactivity of carbon-supported gold nanostructures for catalysed acetylene hydrochlorination.

ABSTRACT: Carbon-supported gold catalysts have the potential to replace the toxic mercuric chloride-based system applied industrially for acetylene hydrochlorination, a key technology for the manufacture of polyvinyl chloride. However, the design of an optimal catalyst is essentially hindered by the difficulties in assessing the nature of the active site. Herein, we present a platform of carbon supported gold nanostructures at a fixed metal loading, ranging from single atoms of tunable oxidation state and coordination to metallic nanoparticles, by varying the structure of functionalised carbons and use of thermal activation. While on activated carbon particle aggregation occurs progressively above 473 K, on nitrogen-doped carbon gold single atoms exhibit outstanding stability up to temperatures of 1

SUBMITTER: Kaiser SK 

PROVIDER: S-EPMC6334749 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature