Tuning crystal-phase of bimetallic single-nanoparticle for catalytic hydrogenation.

ABSTRACT: Bimetallic nanoparticles afford geometric variation and electron redistribution via strong metal-metal interactions that substantially promote the activity and selectivity in catalysis. Quantitatively describing the atomic configuration of the catalytically active sites, however, is experimentally challenged by the averaging ensemble effect that is caused by the interplay between particle size and crystal-phase at elevated temperatures and under reactive gases. Here, we report that the intrinsic activity of the body-centered cubic PdCu nanoparticle, for acetylene hydrogenation, is one order of magnitude greater than that of the face-centered cubic one. This finding is based on precisely identifying the atomic structures of the active sites over the same-sized but crystal-phase-varied singl

SUBMITTER: Liu S 

PROVIDER: S-EPMC9355964 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature