Atomic-thick metastable phase RhMo nanosheets for hydrogen oxidation catalysis.

ABSTRACT: Metastable phase two-dimensional catalysts provide great flexibility for modifying their chemical, physical, and electronic properties. However, the synthesis of ultrathin metastable phase two-dimensional metallic nanomaterials is highly challenging, mainly due to the anisotropic nature of metallic materials and their thermodynamically unstable ground-state. Here, we report free-standing RhMo nanosheets with atomic thickness and a unique core/shell (metastable phase/stable phase) structure. The polymorphic interface between the core region and shell region stabilizes and activates metastable phase catalysts; the RhMo Nanosheets/C shows excellent hydrogen oxidation activity and stability. Specifically, the mass activities of RhMo Nanosheets/C is 6.96 A mg_Rh^-1; this is

SUBMITTER: Zhang J 

PROVIDER: S-EPMC10063647 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature