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Nano Research

Article Title

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

Authors

Cheng Sun, Soochow Institute for Energy and Materials Innovations & Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou 215006, China
Peipei Wang, State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
Hao Wang, Soochow Institute for Energy and Materials Innovations & Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou 215006, China
Chuan Xu, State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
Juntong Zhu, Soochow Institute for Energy and Materials Innovations & Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou 215006, China
Yanxia Liang, State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
Ying Su, Soochow Institute for Energy and Materials Innovations & Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou 215006, China
Yining Jiang, Soochow Institute for Energy and Materials Innovations & Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou 215006, China
Wenqi Wu, Soochow Institute for Energy and Materials Innovations & Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou 215006, China
Engang Fu, State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
Guifu Zou, Soochow Institute for Energy and Materials Innovations & Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou 215006, China

Keywords

MoS2 nanosheet, ion irradiation, electrocatalyst, hydrogen evolution reaction, sulphur vacancy

Abstract

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.

Graphical Abstract

Publisher

Tsinghua University Press

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