Micro-Petal Cobalt-Doped FeMoB Framework for Efficient Hydrogen Generation in Ampere-Level Water Electrolysis.

ABSTRACT: Efforts to develop highly efficient, affordable replacements for noble/precious metal electrocatalysts for hydrogen generation via water electrolysis continue to face critical challenges in addressing global energy and environmental concerns. Herein, Co-doped FeMoB micro-petal (MP) novel framework is demonstrated via a two-step hydrothermal approach, followed by thermal annealing treatment. The optimized Co/FeMoB MP exhibits significantly enhanced HER/OER performance, requiring only 54/257 mV at 100 mA cm^-2 in 1 m KOH, ranking it among the most promising dual-functional electrocatalysts. For overall water-splitting, the bifunctional MP (- ̸̸̸ ̸ +) system delivers an ultra-low cell voltage of 2.87 V at 2000 mA cm^-2 and maintains continuous stability for 250 h at 600 mA

SUBMITTER: Joni MH 

PROVIDER: S-EPMC12802543 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature