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Controlled synthesis of hierarchical porous graphene/Ni(OH)2 nanoarray by combing hydrothermal method with magnetron sputtering

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Abstract

A supercapacitor material consisting of grapheme, Ni(OH)2 and Ni foam (G/Ni(OH)2/NF) was prepared by a hydrothermal method, followed by a sputtering process. The electrochemical properties of resultant supercapacitors with different morphologies were also investigated. Among them, the supercapacitor based on nanoneedle array showed the best performance compared with other counterparts, with a larger area capacitance of 1.42 F cm−2 and excellent cycling stability, maintaining ca. 80% of its initial capacitance after 3000 cycles. This study thus provides a facile method for preparing graphene/metal oxide composites with hierarchical structures for supercapacitors and other potential applications.

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Acknowledgments

Yongfeng Liu and Taikan Ou contributed equally to this work. Financial support from Shanxi Provincial Natural Science Foundation (201801D121104, 201803D421081) and National Natural Science Foundation of China (U1810114).

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Authors and Affiliations

  1. Department of Electronic and Communication Engineering, Shanxi Vocational and Technical College, Taiyuan, 030006, Shanxi, China

    Yongfeng Liu & Jiangtao Zhang

  2. School of Material Science and Engineering, North University of China, Taiyuan, 030051, Shanxi, China

    Yongfeng Liu, TaiKan Ou, Jiangtao Zhang, Limin Qing, Xiaojun Du & Youyi Sun

  3. Department of Blood Transfusion, The First Affiliated Hospital of Shanxi Medical University, Taiyuan, 030001, China

    Ying Ren

Authors
  1. Yongfeng Liu
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  2. TaiKan Ou
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  3. Ying Ren
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  4. Jiangtao Zhang
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  5. Limin Qing
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  6. Xiaojun Du
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Corresponding authors

Correspondence to Xiaojun Du or Youyi Sun.

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Liu, Y., Ou, T., Ren, Y. et al. Controlled synthesis of hierarchical porous graphene/Ni(OH)2 nanoarray by combing hydrothermal method with magnetron sputtering. MRS Communications 12, 30–36 (2022). https://doi.org/10.1557/s43579-021-00118-9

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  • DOI: https://doi.org/10.1557/s43579-021-00118-9

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