Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan School of Chemistry and Chemical Engineering Shihezi University Shihezi 832003 Xinjiang China;
School of Physics and Electronics.Hunan University Changsha 410082 Hunan China;
Institute of Advanced Electrochemical Energy Xi''an University of Technology Xi''an 710048 Shaanxi China;
Key Laboratory of Materials Processing and Mold(Zhengzhou University) Ministry of Education Zhengzhou University Zhengzhou 450002 Henan China;
Defective ZnS nanoparticle; Zn vacancy; Electrocatalyst; Oxygen reduction reaction; Density functional theory calculations;