Science China Materials

, Volume 61, Issue 3, pp 353–362 | Cite as

Ni(OH)2 nanoflakes supported on 3D hierarchically nanoporous gold/Ni foam as superior electrodes for supercapacitors

  • Xi Ke (柯曦)
  • Zouxin Zhang (张邹鑫)
  • Yifeng Cheng (程乙峰)
  • Yaohua Liang (梁耀华)
  • Zhiyuan Tan (谭植元)
  • Jun Liu (刘军)
  • Liying Liu (刘丽英)
  • Zhicong Shi (施志聪)
  • Zaiping Guo (郭再萍)


The increasing demand for portable electronic devices and hybrid electric vehicles stimulates the development of supercapacitors as an advanced energy storage system. Here, we demonstrate a binder-free nickel hydroxide@nanoporous gold/Ni foam (Ni(OH)2@NPG/Ni foam) electrode for high-performance supercapacitors, which is prepared by a facile three-step fabrication route including electrodeposition of Au-Sn alloy on Ni foam, chemical dealloying of Sn and electrodepostion of Ni(OH)2 on NPG/Ni foam. Such Ni(OH)2@NPG/Ni foam electrode is composed of a thin layer of conformable Ni(OH)2 nanoflakes supported on three-dimensional (3D) hierarchically porous NPG/Ni foam substrate. The resulting Ni(OH)2@NPG/Ni foam electrode can offer highways for both electron transfer and ion transport and lead to an excellent electrochemical performance with an ultrahigh specific capacitance of 3380 F g-1 at a current density of 2 A g−1. Even when the current density was increased to 50 A g−1, it still retained a high capacitance of 1927 F g−1. The promising performance of the Ni(OH)2@NPG/Ni foam electrode is mainly ascribed to the 3D hierarchical porosity and the highly conductive network on the NPG/Ni foam composite current collector, as well as the conformal electrodeposition of Ni(OH)2 active material on the NPG/Ni foam, which induces the formation of interconnected porosity both on the top surface and on the inner surface of the electrode. This inspiring electrochemical performance would make the as-designed electrode material become one of the most promising candidates for future electrochemical energy storage systems.


supercapacitor nanoporous gold nickel hydroxide electrode material hierarchical porosity 



人们对便携式电子器件和混合动力汽车的需求不断增长, 激发了超级电容器等先进储能体系的发展. 本文通过三步法, 包括电化学沉积金-锡合金、 化学去合金除锡以及电化学沉积氢氧化镍等, 制备了无需粘结剂的氢氧化镍@纳米多孔金/泡沫镍电极用作超级电容器电极材料. 该电极材料由支撑在三维分级多孔的纳米多孔金/泡沫镍基底表面的氢氧化镍纳米片薄层组成, 能够为电子传导与离子输运提供快速通道, 在2 A g−1的充放电电流密度下比电容值高达 3380 F g−1, 当充放电电流密度增大到50 A g−1时, 其比电容值仍能保持为1927 F g−1, 表现出优异的电化学性能. 氢氧化镍@纳米多孔金/泡沫镍电极材料具有优良电化学性能的原因在于其所拥有的三维分级多孔结构、 纳米多孔金/泡沫镍复合集流体的高导电网络以及氢氧化镍活性材料在纳米多孔金/泡沫镍表面的保形电沉积使整个电极的内外表面均形成互连的多孔结构. 氢氧化镍@纳米多孔金/泡沫镍电极材料所展现出的优异电化学性能令其有望成为未来最有前景的电化学储能材料之一.



This work was financially supported by the National Natural Science Foundation of China (21673051, 51604086), the Guangdong Science and Technology Department (2016A010104015), the Pearl River Scholar Funded Scheme of Guangdong Province Universities and Colleges (2015), the Science and Technology Program of Guangzhou (201604030037), the ‘One-hundred Talents plan’ (220418056), the ‘One-hundred Young Talents plan’ (220413126) and the Youth Foundation (252151038) of Guangdong University of Technology.

Supplementary material

40843_2017_9144_MOESM1_ESM.pdf (844 kb)
Ni(OH)2 nanoflakes supported on 3D hierarchically nanoporous gold/Ni foam as superior electrodes for supercapacitors


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Copyright information

© Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2017

Authors and Affiliations

  • Xi Ke (柯曦)
    • 1
  • Zouxin Zhang (张邹鑫)
    • 1
  • Yifeng Cheng (程乙峰)
    • 1
  • Yaohua Liang (梁耀华)
    • 1
  • Zhiyuan Tan (谭植元)
    • 1
  • Jun Liu (刘军)
    • 1
  • Liying Liu (刘丽英)
    • 1
  • Zhicong Shi (施志聪)
    • 1
  • Zaiping Guo (郭再萍)
    • 2
  1. 1.Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Materials and EnergyGuangdong University of Technology, Guangzhou Higher Education Mega CenterGuangzhouChina
  2. 2.Institute for Superconducting and Electronic Materials, School of Mechanical, Materials and Mechatronics EngineeringUniversity of WollongongNorth WollongongAustralia

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