Ce Single Atom-Engineered Amorphous/Crystalline Nanosheets for Enhanced Alkaline Water Electrolysis.

ABSTRACT: Designing nanocatalysts with fast water dissociation kinetics is key to achieving the industrial current density of the cathodic hydrogen evolution reaction (HER) for green hydrogen production via water electrolysis, which remains a grand challenge. Here, leverage single-atom engineering,a Ce single-atom-doped amorphous RuO_x nanosheet featuring abundant amorphous/crystalline nanojunctions, namely, ac-Ce_SARuO_x is successfully developed. When employed as a catalyst for alkaline HER, the ac-Ce_SARuO_x catalyst displays an overpotential of only 8.3 mV at 10 mA cm^-2 and Tafel slope as low as 23.1 mV dec^-1, outperforming the Ru-based catalysts reported in recent studies. Anion exchange-membrane water electrolyzers (AEMWEs

SUBMITTER: Chen X 

PROVIDER: S-EPMC12710578 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature