Carbon nanotubes/holey graphene hybrid film as binder-free electrode for flexible supercapacitors

[Display omitted] The practical application of graphene (GR) has still been hindered because of its unsatisfied physical and chemical properties resulting from the irreversible agglomerates. Preparation of GR-based materials with designed porosities is essential for its practical application. In thi...

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Bibliographic Details
Published in:Journal of colloid and interface science 2017-05, Vol.494, p.355-362
Main Authors: Deng, Lingjuan, Gu, Yuanzi, Gao, Yihong, Ma, Zhanying, Fan, Guang
Format: Article
Language:English
Subjects:
Carbon nanotube
Flexible
Holey graphene
Supercapacitors
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Summary:[Display omitted] The practical application of graphene (GR) has still been hindered because of its unsatisfied physical and chemical properties resulting from the irreversible agglomerates. Preparation of GR-based materials with designed porosities is essential for its practical application. In this work, a facile and scalable method is developed to synthesize carbon nanotubes/holey graphene (CNT/HGR) flexible film using functional CNT and HGR as precursors. Owing to the existence of the small amount CNT, the CNT-5/HGR flexible film with a 3D conductive interpenetrated architecture exhibit significantly improved ion diffusion rate compared to that of the HGR. Moreover, CNT-5/HGR flexible film can be used as binder-free supercapacitor electrodes with ultrahigh specific capacitances of 268Fg−1, excellent rate capabilities, and superior cycling stabilities. CNT-5/HGR flexible film could be used to fabricate high-performance flexible supercapacitors electrodes.
ISSN:0021-9797
1095-7103
DOI:10.1016/j.jcis.2017.01.062