青岛科技大学  English 
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教授 博士生导师  
硕士生导师  

教师拼音名称:linjianjian

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入职时间:2018-09-11

所在单位:化学与分子工程学院

学历:博士研究生

办公地点:四方校区第一实验楼216

性别:女

联系方式:19862229511

学位:工学博士

职称:教授

毕业院校:澳大利亚伍伦贡大学

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Nickel-doped pyrrhotite iron sulfide nanosheets as a highly efficient electrocatalyst for water splitting

关键字:OXYGEN EVOLUTION; ULTRATHIN NANOSHEETS; NI FOAM; FE; CATALYSTS; OXIDATION; NANOCRYSTALS; GENERATION; MECHANISM; ELECTRODE

摘要:The synthesis of highly active, stable and cost-effective electrocatalysts for overall water splitting is critical but challenging. Herein, we synthesized nickel-doped pyrrhotite iron sulfide (Fe0.95-xNixS1.05) nanosheetsviaa one-pot synthetic route. When tested for oxygen evolution reaction (OER) performance in alkaline solutions, the as-prepared Fe(0.8)Ni(0.15)S(1.05)catalyst exhibited superior electrocatalytic performance to commercial IrO(2)with a current density of 10 mA cm(-2)at an overpotential of 228 mV, and a Tafel slope of 53 mV dec(-1). The hydrogen evolution reaction (HER) activity was achieved on Fe(0.8)Ni(0.15)S(1.05)with a Tafel slope of 103 mV per decade, and a current density of 10 mA cm(-2)at an overpotential of 263 mV. With nickel doping, the as-prepared pyrrhotite iron sulfide nanosheets can expose more active sites, and hence act as a highly efficient catalyst for overall water splitting.

卷号:8

期号:39

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