广州化学2025，Vol.50Issue(2)：60-65,6.DOI:10.16560/j.cnki.gzhx.20250202
Ni3S2-Ni3B异质结的制备及电氧化尿素制氢研究
Preparation of Ni3S2-Ni3B Heterojunction and Hydrogen Production from Urea Electrooxidation
摘要
Abstract
The bifunctional nickel foam self-supported Ni3S2-Ni3B electrocatalyst was synthesized by solid bromizing and hydrothermal method.The phase,morphology and elemental valence of the catalyst were analyzed by XRD,SEM,TEM and XPS,and the electrochemical properties of the catalyst were investigated in the alkaline electrolyte containing urea.The results show that the heterogeneous interface optimizes the electronic structure and exposes a wealth of active sites,and the Ni3S2-Ni3B/NF catalyst exhibits excellent UOR activity,requiring only 1.44 V vs RHE voltage to achieve a current density of 300 mA/cm2.The Ni3S2-Ni3B/NF‖Ni3S2-Ni3B/NF HER-UOR dual electrode system used for urea decoupling hydrogen production can provide a current density of 10 mA/cm2 at a low battery voltage of 1.6 V,and can maintain a faraday efficiency of more than 96％in the voltage range of 1.6～1.9 V.关键词
电催化剂/异质界面/Ni3S2-Ni3B/电氧化尿素/产氢效率Key words
electrocatalyst/heterogeneous interface/Ni3S2-Ni3B/electrooxidized urea/hydrogen production efficiency分类
化学引用本文复制引用
洪安琪,段誉,徐姣,韦童..Ni3S2-Ni3B异质结的制备及电氧化尿素制氢研究[J].广州化学,2025,50(2):60-65,6.基金项目
国家自然科学基金(22172143) （22172143）
