Metal-Doped CoS Nanosheets: Breaking Scaling Limitations for Enhanced Urea Electrooxidation and Hydrogen Evolution

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: April 23, 2025

The electrocatalytic urea oxidation reaction (UOR) is a promising approach to lowering the energy barrier of anode half-reaction in water splitting for energy-efficient hydrogen production and remove excess from blood or dialysis fluid. However, sluggish kinetics large overpotential caused by scaling relationships significantly limit development UOR technology. Herein, bifunctional amorphous M-CoS (M = Zr, Cu, Mn, Fe) nanosheets were synthesized via one-step electrodeposition process. Among them, Zr-CoS exhibited exceptional performance, achieving 10 mA cm-2 at an 1.26 V, outperforming recently reported catalysts, while CoS demonstrated evolution impressively low -175 mV. Density functional theory calculations revealed that doped Cu Zr ions migrated adsorption sites N atoms before after C-N cleavage, breaking limitation relationships. Meanwhile, cleavage step showed good linear relationship with variation integrated crystal orbital Hamilton population (ΔICOHP), indicating ΔICOHP was descriptor evaluate performances. This work not only emphasized outstanding performances but also offered innovative insights into role metal sulfides UOR.

Language: Английский

Synergistic combination of Mn/Fe bimetal-doped carbon nitride and peroxymonosulfate for efficient photocatalytic degradation of antibiotics

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(5), P. 113730 - 113730

Published: Aug. 12, 2024

Language: Английский

Super-exchange interaction enables Fe2−xMnxO3 perovskite with excellent catalytic oxidation activity toward hexabromocyclododecane under humidity

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 479, P. 135691 - 135691

Published: Aug. 28, 2024

Language: Английский