Ultrafast self-heating synthesis of robust heterogeneous nanocarbides for high current density hydrogen evolution reaction.

ABSTRACT: Designing cost-effective and high-efficiency catalysts to electrolyze water is an effective way of producing hydrogen. Practical applications require highly active and stable hydrogen evolution reaction catalysts working at high current densities (≥1000 mA cm^-2). However, it is challenging to simultaneously enhance the catalytic activity and interface stability of these catalysts. Herein, we report a rapid, energy-saving, and self-heating method to synthesize high-efficiency Mo₂C/MoC/carbon nanotube hydrogen evolution reaction catalysts by ultrafast heating and cooling. The experiments and density functional theory calculations reveal that numerous Mo₂C/MoC hetero-interfaces offer abundant active sites with a moderate hydrogen adsorption free energy ΔG

SUBMITTER: Li C 

PROVIDER: S-EPMC9184596 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature