Harnessing strong metal-support interactions via a reverse route.

ABSTRACT: Engineering strong metal-support interactions (SMSI) is an effective strategy for tuning structures and performances of supported metal catalysts but induces poor exposure of active sites. Here, we demonstrate a strong metal-support interaction via a reverse route (SMSIR) by starting from the final morphology of SMSI (fully-encapsulated core-shell structure) to obtain the intermediate state with desirable exposure of metal sites. Using core-shell nanoparticles (NPs) as a building block, the Pd-FeO_x NPs are transformed into a porous yolk-shell structure along with the formation of SMSIR upon treatment under a reductive atmosphere. The final structure, denoted as Pd-Fe₃O₄-H, exhibits excellent catalytic performance in semi-hydrogenation of acetylene with 100%

SUBMITTER: Wu P 

PROVIDER: S-EPMC7297808 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature