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A Facile Strategy for the Preparation of MoS 3 and its Application as a Negative Electrode for Supercapacitors
Author(s) -
Zhang Tong,
Kong LingBin,
Dai YanHua,
Yan Kun,
Shi Ming,
Liu MaoCheng,
Luo YongChun,
Kang Long
Publication year - 2016
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201600647
Subject(s) - supercapacitor , capacitance , materials science , electrode , graphene , electrolyte , nanotechnology , optoelectronics , chemical engineering , chemistry , engineering
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 MoS 3 as a new negative electrode for supercapacitors. MoS 3 was fabricated by the facile thermal decomposition of a (NH 4 ) 2 MoS 4 precursor. For comparison, samples of MoS 3 &MoS 2 and MoS 2 were also synthesized by using the same method. Moreover, this is the first report of the application of MoS 3 as a negative electrode for supercapacitors. MoS 3 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 MoS 3 electrode was 92 % after 1500 cycles, and even 71 % after 5000 cycles. In addition, an asymmetric supercapacitor assembly of MoS 3 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 MoS 3 has significant potential in energy‐storage devices.