Journal of Inorganic Materials, Volume. 34, Issue 2, 130(2019)
Green Preparation and Supercapacitive Performance of NiCo2S4@ACF Heterogeneous Electrode Materials
Traditional NiCo2S4 vulcanization process requires high-temperature and high energy supply, and has disadvantage of low conductivity. In this study, an environmental friendly vulanization method was utilized to prepare unique NiCo2S4@ACF core-shell heterstructure materials with activated carbon fiber (ACF) as skeleton at room temperature. NiCo2S4@ACF composite electrode material owns layered structures, which can effectively expand contact area with electrolyte, improve electron transmission path, and better create electrochemical performance. Specific capacitance of NiCo2S4@ACF composite electrode materials reached 1541.6 F/g (678 μF/cm2) at the current density of 1 A/g. In addition, the asymmetric supercapacitors (ASC) device fabricated with NiCo2S4@ACF as positive electrode and ACF as negative electrode exhibited energy density as high as 49.38 Wh/kg at the power density of 800 W/kg, and preeminent cycle stability up to 90.28% after 2000 cycles. All these data demonstrated that NiCo2S4@ACF is a promising potential application in the field of high-performance supercapacitors in the future.
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Shi-Huai ZHAO, Zi-Bo YANG, Xiao-Ming ZHAO, Wen-Wen XU, Xin WEN, Qing-Yin ZHANG, [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Green Preparation and Supercapacitive Performance of NiCo2S4@ACF Heterogeneous Electrode Materials[J]. Journal of Inorganic Materials, 2019, 34(2): 130
Category: Research Articles
Received: Apr. 10, 2018
Accepted: --
Published Online: Sep. 24, 2021
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