Graphene-like MoS2 Nanosheets on Carbon Fabrics as High-Performance Binder-free Electrodes for Supercapacitors and Li-Ion Batteries

Hong Yin; Yuan Liu; Neng Yu; Hong-Qing Qu; Zhitian Liu; Renzhi Jiang; Chong Li; Ming-Qiang Zhu

doi:10.1021/acsomega.8b02446

Graphene-like MoS₂ Nanosheets on Carbon Fabrics as High-Performance Binder-free Electrodes for Supercapacitors and Li-Ion Batteries

ACS Omega. 2018 Dec 17;3(12):17466-17473. doi: 10.1021/acsomega.8b02446. eCollection 2018 Dec 31.

Authors

Hong Yin¹, Yuan Liu¹, Neng Yu², Hong-Qing Qu¹, Zhitian Liu³, Renzhi Jiang¹, Chong Li¹, Ming-Qiang Zhu¹

Affiliations

¹ Wuhan National Laboratory for Optoelectronics (WNLO), School of Optics and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China.
² Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices, School of Chemistry, Biology and Materials Science, East China University of Technology, Nanchang 330013, China.
³ School of Materials Science & Technology, Wuhan Institute of Technology, Wuhan 4302054, China.

Abstract

Two-dimensional layer-structure materials are now of great interest in energy storage devices, owing to their graphene-like structure and high theoretical capacity. Herein, graphene-like molybdenum disulfide (MoS₂) nanosheets were uniformly grown on carbon fabrics by using a hydrothermal method. They were evaluated as binder-free electrodes for Li-ion batteries (LIBs) and supercapacitors. As expected, long cycling life and high capacity/capacitance are achieved. When used as self-standing electrodes for LIBs, they deliver a high area capacity of ∼0.5 mAh/cm² even after 400 cycles and remarkable rate capability in the charge/discharge potential range of 1-3 V. In addition, a three-dimensional integrated electrode of the MoS₂ nanosheet exhibits a high capacitance of 103.5 mF/cm² and long cycling stability up to at least 15 000 cycles at a current density of 3 mA/cm² for supercapacitors. The great cycling stability of MoS₂ in supercapacitors is promising in the enhancement of cycling stability through their integration with other materials as alternatives to graphene in some special fields.