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首页> 外文期刊>RSC Advances >Dual tuning of 1 D heteroatoms doped porous carbon nanoarchitectures for supercapacitors: the role of balanced P/N doping and core@shell nano-networks
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Dual tuning of 1 D heteroatoms doped porous carbon nanoarchitectures for supercapacitors: the role of balanced P/N doping and core@shell nano-networks

机译：1 D杂原子的双重调谐掺杂多孔碳纳米纳米建筑，用于超级电容器：平衡P / N掺杂和核心X壳纳米网络的作用

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摘要

Heteroatoms dual-doped carbon with three dimensional interconnected architecture is a promising candidate as electrode for high performance energy storage, but the rational design and cost-effective preparation of such materials is still a challenge. Herein, intriguing P and N co-doped porous CNT@carbon core@shell nano-networks (PN-CNTs) have been facilely achieved by a one-step carbonization process of N containing CNT@polymer with triphenylphosphine (TPP). Significantly, such interesting structure provides the synergistic effects of the 3D interconnected networks consisting of 1D core-shell structure (offering continuous pathway for electron transport), hierarchical porous texture (acting as ion-buffering reservoirs) and P and N dual-doped (optimizing the electron donor/acceptor characteristics of carbon). With the advantages of heteroatoms dual-doping effect and rational interconnected porous structure, the PN-CNTs exhibit an ultra-high specific capacitance of 332.56 F g(-1), much higher than N-doped carbon@carbon nanotubes (284 F g(-1)) and CNTs (32 F g(-1)), good rate capability and a robust cycling performance (almost no capacity fading even after 8000 cycles). The present work provides a novel passway to engineering multi-heteroatoms doped carbon with hierarchical nanoarchitectures through a facile and general route for high-performance renewable energy storage.
机译：杂原子与三维互连架构的双掺杂碳是作为高性能储能的有希望的候选者，但是理性的设计和经济高效的这种材料的准备仍然是一个挑战。这里，通过用三苯基膦（TPP）的N含量的CNT @聚合物的N级碳化过程一直碳化过程一直以含有CNT @聚合物的一步碳化过程，易于掺杂P和N共掺杂多孔CNT /碳核心纳米网络（PN-CNT）。显着地，这种有趣的结构提供了由1D芯壳结构（为电子传输的连续途径提供的3D互连网络的协同效应，等级多孔纹理（用作离子缓冲储存器）和P和N双掺杂（优化碳的电子供体/受体特征）。随着杂原子的优点，双掺杂效应和合理的互连多孔结构，PN-CNT具有332.56fg（-1）的超高比电容，远高于n掺杂的碳纳米管（284 f g（ -1））和CNT（32 f G（-1）），良好的速率能力和稳健的循环性能（即使在8000个周期之后也几乎没有容量衰落）。本工作提供了一种新的通道，以通过容易和一般的高性能可再生能源储存，通过便利和一般的途径来为工程多杂原子掺杂碳的掺杂碳。

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  • 来源
    《RSC Advances》 |2016年第11期|共6页
  • 作者

    Li Yuanyuan; Chen Zhimin; Zhang Jianan; Xu Qun;

  • 作者单位

    Zhengzhou Univ Coll Mat Sci &

    Engn Zhengzhou 450052 Peoples R China;

    Zhengzhou Univ Coll Mat Sci &

    Engn Zhengzhou 450052 Peoples R China;

    Zhengzhou Univ Coll Mat Sci &

    Engn Zhengzhou 450052 Peoples R China;

    Zhengzhou Univ Coll Mat Sci &

    Engn Zhengzhou 450052 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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