Defect engineering of molybdenum disulfide through ion irradiation to boost hydrogen evolution reaction performance  

作　　者：Cheng Sun Peipei Wang Hao Wang Chuan Xu Juntong Zhu Yanxia Liang Ying Su Yining Jiang Wenqi Wu Engang Fu Guifu Zou 

机构地区：[1]Soochow Institute for Energy and Materials Innovations & Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies oj Jiangsu Province,Soochow University,Suzhou 215006,China [2]State Key Laboratory of Nuclear Physics and Technology,School of Physics,Peking University,Beijing 100871,China

出　　处：《Nano Research》2019年第7期1613-1618,共6页纳米研究（英文版）

基　　金：the National Natural Science Foundation of China (Nos.21671141,11375018 and 11528508);the National Basic Research Program of China (No.2015CB358600);the Priority Academic Program Development (PAPD) of Jiangsu Higher Education Institutions for Optical Engineering in Soochow University the National Magnetic Confinement Fusion Energy Research Project (Nos.2015GB121004,2017YFE0302500 and 2018YFE0307100) from Ministry of Science and Technology of China,China-Romania Science and Technology Cooperation committee 43rd Regular Meeting Exchange program and Ion Beam Materials Laboratory (IBML) at Peking University.

摘　　要：The inert basal plane of molybdenum disulfide (MoS2) restrains its further hydrogen evolution reaction (HER) performance.This work attempts ion irradiation to activate inert basal plane of MoS2 nanosheet to improve its electrocatalytic performance.Experimental results demonstrate the sulphur vacancies generated by ion irradiation on the basal plane of MoS2 mainly boost the efficiency of HER performance.The moderate fluence of carbon ion irradiation gains the optimum HER performance with an onset potential of 77 mV and Tafel slope of 66 mV/dec.

关 键 词：MOS2 NANOSHEET ion IRRADIATION ELECTROCATALYST hydrogen evolution reaction SULPHUR VACANCY 

分 类 号：O4[理学—物理]