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首页> 外文期刊>Nanotechnology >Nickel skeleton three-dimensional nitrogen doped graphene nanosheets/nanoscrolls as promising supercapacitor electrodes
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Nickel skeleton three-dimensional nitrogen doped graphene nanosheets/nanoscrolls as promising supercapacitor electrodes

机译：镍骨架三维氮掺杂石墨烯纳米片/纳米筒作为承诺超级电容器电极

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摘要

A novel nickel skeleton 3D nitrogen doped graphene (N-GR/NF) superstructure with interconnected graphene nanosheets and nanoscrolls was synthesized using a facile two-step method. By varying the precursor concentration, the assembly of a graphene aerogel can be easily regulated, yielding different micro-structures and morphologies which accelerate the fast electron/ion transportation. The N-GR/NF composites demonstrate enhanced capacitance of 250 F g(-1) at 5 A g(-1), good rate performance (237 F g(-1) at the current density of 12 A g(-1)) and cycle stability (90.9% retention after 5000 cycles) in 1M KOH electrolyte. This study provides a new strategy for the microporous engineering of graphene gel, promising for further exploitation in various other applications.
机译：使用容易的两步法合成了一种具有相互连接的石墨烯纳米片和纳米筒状的新型镍骨架3D氮掺杂石墨烯（N-GR / NF）上部结构。 通过改变前体浓度，可以容易地调节石墨烯气凝胶的组装，得到不同的微结构和形态，其加速快速电子/离子运输。 N-GR / NF复合材料显示在5A（-1），良好的速率性能（在电流密度为12ag（-1）时的增强电容（237 f g（-1）） ）1M KOH电解质中的循环稳定性（5000次循环后90.9％的保留）。 本研究为石墨烯凝胶的微孔工程提供了一种新的策略，有希望进一步利用各种其他应用。

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  • 来源
    《Nanotechnology》 |2017年第36期|共9页
  • 作者

    Wang Faze; Zheng Maojun; Ma Liguo; Li Qiang; Song Jingnan; You Yuxiu; Ma Li; Shen Wenzhong;

  • 作者单位

    Shanghai Jiao Tong Univ Dept Phys &

    Astron Minist Educ Key Lab Artificial Struct &

    Quantum Control Shanghai 200240 Peoples R China;

    Shanghai Jiao Tong Univ Dept Phys &

    Astron Minist Educ Key Lab Artificial Struct &

    Quantum Control Shanghai 200240 Peoples R China;

    Shanghai Jiao Tong Univ Dept Phys &

    Astron Minist Educ Key Lab Artificial Struct &

    Quantum Control Shanghai 200240 Peoples R China;

    Shanghai Jiao Tong Univ Dept Phys &

    Astron Minist Educ Key Lab Artificial Struct &

    Quantum Control Shanghai 200240 Peoples R China;

    Shanghai Jiao Tong Univ Dept Phys &

    Astron Minist Educ Key Lab Artificial Struct &

    Quantum Control Shanghai 200240 Peoples R China;

    Shanghai Jiao Tong Univ Dept Phys &

    Astron Minist Educ Key Lab Artificial Struct &

    Quantum Control Shanghai 200240 Peoples R China;

    Shanghai Jiao Tong Univ Sch Chem &

    Chem Technol Shanghai 200240 Peoples R China;

    Shanghai Jiao Tong Univ Dept Phys &

    Astron Minist Educ Key Lab Artificial Struct &

    Quantum Control Shanghai 200240 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 特种结构材料;
  • 关键词

    nickel skeleton; three-dimensional; EDA; graphene nanoscrolls; supercapacitor;

    机译：镍骨架;三维;eda;石墨烯纳米筒子;超级电容器;

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