Vanadium-regulated nickel phosphide nanosheets for electrocatalytic sulfion upgrading and hydrogen production.

ABSTRACT: The electrochemical sulfion oxidation reaction (SOR) is highly desirable to treat sulfion-rich wastewater and achieve energy-saving hydrogen production when coupled with the cathodic hydrogen evolution reaction (HER). Herein, we propose a thermodynamically favorable SOR to couple with the HER, and develop vanadium-doped nickel phosphide (V-Ni₂P) nanosheets for simultaneously achieving energy-efficient hydrogen production and sulfur recovery. V doping can efficiently adjust the electronic structure and improve intrinsic activity of Ni₂P, which exhibits outstanding electrocatalytic performances for the HER and SOR with low potentials of -0.093 and 0.313 V to afford 10 mA cm^-2. Remarkably, the assembled V-Ni₂P-based hybrid water electrolyzer couplin

SUBMITTER: Li RQ 

PROVIDER: S-EPMC11616623 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature