Defect-mediated successive ionic layer adsorption and reaction for constructing Sb2Te3/Ag2S heterojunction to boost hydrogen evolution reaction performance

Qingtao Wang,Liqiu Huang,Huiping Liu,Yanxia Wu,Guofu Ma,Ziqiang Lei,Shufang Ren

Fuel（2022）

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摘要

•He2+ irradiation is a controllable method for Sb2Te3 defect engineering.•The successive ionic layer adsorption and reaction was used to deposit Ag2S.•The surface defects of Sb2Te3 can affect the particle size and distribution of Ag2S.•The Ag2S/Sb2Te3 heterojunction has more active sites, low Rct, and high conductivity.•The more hydrophilic Ag2S/Sb2Te3 surface also promotes HER performance.

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关键词

Ion irradiation,Defect engineering,Successive ionic layer adsorption and reaction,Hydrogen evolution reaction,Heterostructure,Telluride antimony

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