MoS₂/RGO/Ni₃S₂ Nanocomposite in-situ Grown on Ni Foam Substrate and Its High Electrochemical Performance

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• 作者：Chongjun Zhao ; ^{chongjunzhao@ecust.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; Yuxiao Zhang ; Xiuzhen Qian
• 关键词：MoS2/RGO/Ni3S2 composites ; Supercapacitor ; Nickel foam (NF) ; Reduced graphene oxide ; Hydrothermal method
• 刊名：Electrochimica Acta
• 出版年：2016
• 出版时间：20 April 2016
• 年：2016
• 卷：198
• 期：Complete
• 页码：135-143
• 全文大小：2535 K

文摘

MoS₂/RGO/Ni₃S₂ nanocomposite with a unique nanosheet-on-nanosheet structure was prepared through a hydrothermal process by depositing a MoS₂ layer on the upper surface side of reduced graphene oxide (RGO) nanosheets and Ni₃S₂ layer on the lower surface sides. Furthermore, this, MoS₂/RGO/Ni₃S₂ nanocomposite was simultaneously loaded on a Ni foam (NF) substrate. During the synthesis process, nickel foam serves not only as a support but also as the Ni source for the composite and a reductant of GO. When used as an electrochemical electrode, as-prepared MoS₂/RGO/Ni₃S₂@NF, it exhibited excellent electrochemical performance with a high capacity of 8.841 F cm⁻² at 50 mA cm⁻², and excellent cyclability, exhibiting capacity retention of 98.4% after 11,000 charge-discharge cycles at the current density of 80 mA cm⁻².