常州大学学报（自然科学版）2026，Vol.38Issue(4)：1-9,9.DOI:10.3969/j.issn.2095-0411.2026.04.001
FeNi2S4纳米球的合成及其电催化析氧性能
Synthesis of FeNi2S4 nanoball and its electrocatalytic oxygen evolution performance
摘要
Abstract
Oxygen Evolution Reaction(OER)is a core half-reaction in energy conversion devices such as water electrolysis.The development of efficient and stable non-noble metal OER catalysts are vital importance.Layered Dihydroxides(LDH)are excellent precursors for the preparation of transition metal-based catalysts.In this paper,FeNi2-LDH was used as the precursor to synthesize FeNi2S4 nanoball catalysts by a simple hydrothermal vulcanization method,and its OER electrocatalytic per-formance was systematically studied.The morphology and surface electronic states of the catalyst were characterized by Scanning Electron Microscopy(SEM),X-ray Photoelectron Spectroscopy(XPS),and other techniques.The electrochemical test results show that the FeNi2S4 nanoball exhibit excellent OER activity in 1 mol/L KOH electrolyte.At a current density of 10 mA/cm2,the overpo-tential is only 275 mV,and the Tafel slope is as low as 79.03 mV/dec,which is superior to the FeNi2-LDH precursor.Furthermore,after continuous electrolysis for 10 hours,this catalyst still exhibits excellent stability.The unique nanosphere structure has a large electrochemical active area,which ex-poses abundant active sites and accelerates the charge transfer and the adsorption-desorption kinetics of reaction intermediates.关键词
FeNi2S4/纳米球/析氧反应Key words
FeNi2S4/nanoball/Oxygen Evolution Reaction分类
化学化工引用本文复制引用
王青,韦佳敏,何光裕,陈海群..FeNi2S4纳米球的合成及其电催化析氧性能[J].常州大学学报（自然科学版）,2026,38(4):1-9,9.基金项目
国家自然科学基金资助项目(52472043) （52472043）
江苏省高等学校基础科学(自然科学)研究面上资助项目(25KJB480002) （自然科学）
常州大学人才引进资助项目(ZMF24020053). （ZMF24020053）
