能源化学(英文) ›› 2018, Vol. 27 ›› Issue (1): 1-5.DOI: 10.1016/j.jechem.2017.11.027

• Preface • 上一篇    下一篇

Engineering graphene for high-performance supercapacitors: Enabling role of colloidal chemistry

Ke Zhanga, Xiaowei Yangb, Dan Lic   

  1. a Department of Materials Science and Engineering, Monash University, Melbourne 3180, Australia;
    b School of Materials Science and Engineering, Tongji University, Shanghai 201804, China;
    c Department of Chemical Engineering, The University of Melbourne, Melbourne 3010, Australia
  • 收稿日期:2017-11-16 修回日期:2017-11-26 出版日期:2018-01-15 发布日期:2018-01-13
  • 通讯作者: Dan Li
  • 作者简介:Ke Zhang received his B.S. degree from the Department of Materials Science and Engineering at Monash University and Central South University in 2015;Xiaowei Yang is a professor at the School of Materials Science and Engineering, Tongji University;Dan Li is a professor in materials science and engineering at the University of Melbourne, Australia.
  • 基金资助:

    The authors acknowledge the financial support for the Australian Research Council (FT110100341 and DP140102624).

Engineering graphene for high-performance supercapacitors: Enabling role of colloidal chemistry

Ke Zhanga, Xiaowei Yangb, Dan Lic   

  1. a Department of Materials Science and Engineering, Monash University, Melbourne 3180, Australia;
    b School of Materials Science and Engineering, Tongji University, Shanghai 201804, China;
    c Department of Chemical Engineering, The University of Melbourne, Melbourne 3010, Australia
  • Received:2017-11-16 Revised:2017-11-26 Online:2018-01-15 Published:2018-01-13
  • Contact: Dan Li
  • Supported by:

    The authors acknowledge the financial support for the Australian Research Council (FT110100341 and DP140102624).

摘要: The high electrical conductivity and high specific surface area of graphene are traditionally regarded as the most intriguing features for its promise as the electrode material for supercapacitors. In this perspective, we highlight that from the engineering point of view, the unique colloidal chemistry of chemically functionalized graphene is the key property that has made graphene stand out as a promising nanoscale building block for constructing unique nanoporous electrodes for capacitive energy storage. We present several examples to demonstrate how the non-covalent colloidal forces between graphene sheets can be harnessed to engineer the nanostructure of graphene-based bulk electrodes for supercapacitors based on both the electrical double layer storage and the redox reaction or pseudo-capacitance mechanisms. The colloidal engineering strategy can be extended to enable other nanomaterials to achieve high energy storage performance.

关键词: Graphene, Colloidal chemistry, Supercapacitors, Nanoporous structure, Two-dimensional materials

Abstract: The high electrical conductivity and high specific surface area of graphene are traditionally regarded as the most intriguing features for its promise as the electrode material for supercapacitors. In this perspective, we highlight that from the engineering point of view, the unique colloidal chemistry of chemically functionalized graphene is the key property that has made graphene stand out as a promising nanoscale building block for constructing unique nanoporous electrodes for capacitive energy storage. We present several examples to demonstrate how the non-covalent colloidal forces between graphene sheets can be harnessed to engineer the nanostructure of graphene-based bulk electrodes for supercapacitors based on both the electrical double layer storage and the redox reaction or pseudo-capacitance mechanisms. The colloidal engineering strategy can be extended to enable other nanomaterials to achieve high energy storage performance.

Key words: Graphene, Colloidal chemistry, Supercapacitors, Nanoporous structure, Two-dimensional materials