超级电容器
电极
纳米线
材料科学
壳体(结构)
纳米技术
芯(光纤)
镍
电解质
化学工程
循环伏安法
集电器
电化学
氢氧化物
化学
无机化学
冶金
复合材料
物理化学
作者
Recep Yuksel,Sahin Coskun,Y.E. Kalay,Husnu Emrah Unalan
标识
DOI:10.1016/j.jpowsour.2016.08.008
摘要
Abstract We present a novel one-dimensional coaxial architecture composed of silver nanowire (Ag NW) network core and nickel hydroxide (Ni(OH)2) shell for the realization of coaxial nanocomposite electrode materials for supercapacitors. Ag NWs are formed conductive networks via spray coating onto polyethylene terephthalate (PET) substrates and Ni(OH)2 is gradually electrodeposited onto the Ag NW network to fabricate core-shell electrodes for supercapacitors. Synergy of highly conductive Ag NWs and high capacitive Ni(OH)2 facilitate ion and electron transport, enhance electrochemical properties and result in a specific capacitance of 1165.2 F g−1 at a current density of 3 A g−1. After 3000 cycles, fabricated nanocomposite electrodes show 93% capacity retention. The rational design explored in this study points out the potential of nanowire based coaxial energy storage devices.
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