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陈婕,张甲,熊信柏,马俊,曾燮榕,李均钦,汤皎宁,钱海霞,李亚运.水热电沉积法生长Co9S8薄膜电极[J].稀有金属材料与工程(英文),2019,47(3):967~972.[Chen Jie,Zhang Jia,Xiong Xinbo,Ma Jun,Zeng Xierong,Li Junqing,Tang Jiaoning,Qian Haixia and Li Yayun.Hydrothermal Electrochemical Deposition Synthesis of Co9S8 Film Electrode[J].Rare Metal Materials and Engineering,2019,47(3):967~972.]
Hydrothermal Electrochemical Deposition Synthesis of Co9S8 Film Electrode
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Received:August 04, 2017  Revised:September 11, 2017
DOI:
Key words: Hydrothermal electrochemical deposition method  Supercapacitor  Co9S8
Foundation item:广东省自然科学基金(2015A030313559);广东省高等教育教学改革项目(GDJG20142288)。
Author NameAffiliation
Chen Jie,Zhang Jia,Xiong Xinbo,Ma Jun,Zeng Xierong,Li Junqing,Tang Jiaoning,Qian Haixia and Li Yayun  
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Abstract:
      A Co9S8 film was in-situ deposited onto nickel foam substrate via a hydrothermal electrochemical deposition method. The morphology, composition and structure of the as-prepared film were characterized and the electrochemical performances were tested. The result showed that the as-synthesized Co9S8 film displayed a petal-like morphology and possessed excellent capacitive behavior with a specific capacitance of 2538.7 F/g at a discharge current density of 10 mA/cm2, and retained to 1930.7 F/g even at a higher density of 50 mA/cm2. After 1000 cycles at 20 mA/cm2, the specific capacitance of 1825.2 F/g still remained, and the capacitance retention is calculated to be 72.8%. Even after 1500 cycles, the specific capacitance retention could retain to 61.4%.