Coherent hexagonal platinum skin on nickel nanocrystals for enhanced hydrogen evolution activity.

ABSTRACT: Metastable noble metal nanocrystals may exhibit distinctive catalytic properties to address the sluggish kinetics of many important processes, including the hydrogen evolution reaction under alkaline conditions for water-electrolysis hydrogen production. However, the exploration of metastable noble metal nanocrystals is still in its infancy and suffers from a lack of sufficient synthesis and electronic engineering strategies to fully stimulate their potential in catalysis. In this paper, we report a synthesis of metastable hexagonal Pt nanostructures by coherent growth on 3d transition metal nanocrystals such as Ni without involving galvanic replacement reaction, which expands the frontier of the phase-replication synthesis. Unlike noble metal substrates, the 3d transition metal substrate

SUBMITTER: Liu K 

PROVIDER: S-EPMC10140298 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature