title: A Facile Strategy for the Preparation of MoS3 and its Application as a Negative Electrode for Supercapacitors.
abstract: Owing to their graphene-like structure and available oxidation valence states, transition metal sulfides are promising candidates for supercapacitors. Herein, we report the application of MoS3 as a new negative electrode for supercapacitors. MoS3 was fabricated by the facile thermal decomposition of a (NH4 )2 MoS4 precursor. For comparison, samples of MoS3 &MoS2 and MoS2 were also synthesized by using the same method. Moreover, this is the first report of the application of MoS3 as a negative electrode for supercapacitors. MoS3 displayed a high specific capacitance of 455.6 F g(-1) at a current density of 0.5 A g(-1) . The capacitance retention of the MoS3 electrode was 92 % after 1500 cycles, and even 71 % after 5000 cycles. In addition, an asymmetric supercapacitor assembly of MoS3 as the negative electrode demonstrated a high energy density at a high potential of 2.0 V in aqueous electrolyte. These notable results show that MoS3 has significant potential in energy-storage devices.
authors.affiliation: State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou, 730050, P. R. China.
authors.forename: Tong
authors.initials: T
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou, 730050, P. R. China. konglb@lut.cn.|School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, P. R. China. konglb@lut.cn.
authors.forename: Ling-Bin
authors.initials: LB
authors.lastname: Kong
authors.affiliation: State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou, 730050, P. R. China.
authors.forename: Yan-Hua
authors.initials: YH
authors.lastname: Dai
authors.affiliation: State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou, 730050, P. R. China.
authors.forename: Kun
authors.initials: K
authors.lastname: Yan
authors.affiliation: State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou, 730050, P. R. China.
authors.forename: Ming
authors.initials: M
authors.lastname: Shi
authors.affiliation: State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou, 730050, P. R. China.
authors.forename: Mao-Cheng
authors.initials: MC
authors.lastname: Liu
authors.affiliation: School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, P. R. China.
authors.forename: Yong-Chun
authors.initials: YC
authors.lastname: Luo
authors.affiliation: School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, P. R. China.
authors.forename: Long
authors.initials: L
authors.lastname: Kang
keywords: electrochemistry; molybdenum; supercapactors; synthetic methods; thermal decomposition