Facile fabrication of hierarchical ultrathin Rh-based nanosheets for efficient hydrogen evolution.

ABSTRACT: Rational design of efficient and stable electrocatalysts for the hydrogen evolution reaction (HER) has attracted wide attention. Noble metal-based electrocatalysts with ultrathin structures and highly exposed active surfaces are essential to boost the HER performance, while the simple synthetic strategies remain challenging. Herein, we reported a facile urea-mediated method to synthesize hierarchical ultrathin Rh nanosheets (Rh NSs) without using toxic reducing agents and structure directing agents in the reaction. The hierarchical ultrathin nanosheet structure and grain boundary atoms endow Rh NSs with excellent HER activities, which only requires a lower overpotential of 39 mV in 0.5 M H₂SO₄ compared to the 80 mV of Rh nanoparticles (Rh NPs). Extending the synthesis

SUBMITTER: Jin C 

PROVIDER: S-EPMC10167732 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature