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首页> 外文期刊>Advanced Functional Materials >Nitrogen-Doped Carbon Networks for High Energy Density Supercapacitors Derived from Polyaniline Coated Bacterial Cellulose
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Nitrogen-Doped Carbon Networks for High Energy Density Supercapacitors Derived from Polyaniline Coated Bacterial Cellulose

机译：源自聚苯胺涂层细菌纤维素的高能量密度超级电容器的氮掺杂碳网络

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摘要

Bacterial cellulose (BC) is used as both template and precursor for the synthesis of nitrogen-doped carbon networks through the carbonization of polyaniline (PANI) coated BC. The as-obtained carbon networks can act not only as support for obtaining high capacitance electrode materials such as activated carbon (AC) and carbon/MnO_2 hybrid material, but also as conductive networks to integrate active electrode materials. As a result, the as-assembled AC//carbon-MnO_2 asymmetric supercapacitor exhibits a considerably high energy density of 63 Wh kg~(-1) in 1.0 m Na_2SO_4 aqueous solution, higher than most reported AC//MnO_2 asymmetric supercapacitors. More importantly, this asymmetric supercapacitor also exhibits an excellent cycling performance with 92% specific capacitance retention after 5000 cycles. Those results offer a low-cost, eco-friendly design of electrode materials for high-performance supercapacitors.
机译：细菌纤维素（BC）被用作模板和前体，通过聚苯胺（PANI）涂层的BC的碳化来合成氮掺杂的碳网络。如此获得的碳网络不仅可以充当获得高电容电极材料（如活性炭（AC）和碳/ MnO_2杂化材料）的载体，而且还可以作为整合活性电极材料的导电网络。结果，组装好的AC //碳-MnO_2不对称超级电容器在1.0 m Na_2SO_4水溶液中具有63 Wh kg〜（-1）的相当高的能量密度，高于大多数报道的AC // MnO_2不对称超级电容器。更重要的是，这种不对称超级电容器还具有出色的循环性能，在5000次循环后具有92％的比电容保持率。这些结果为高性能超级电容器提供了一种低成本，环保的电极材料设计。

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  • 来源
    《Advanced Functional Materials》 |2014年第25期|3953-3961|共9页
  • 作者

    Conglai Long; Dongping Qi; Tong Wei; Jun Yan; Lili Jiang; Zhuangjun Fan;

  • 作者单位

    Key Laboratory of Superlight Materials and Surface Technology Ministry of Education College of Material Science and Chemical Engineering Harbin Engineering University Harbin 150001, P. R.China;

    Key Laboratory of Superlight Materials and Surface Technology Ministry of Education College of Material Science and Chemical Engineering Harbin Engineering University Harbin 150001, P. R.China;

    Key Laboratory of Superlight Materials and Surface Technology Ministry of Education College of Material Science and Chemical Engineering Harbin Engineering University Harbin 150001, P. R.China;

    Key Laboratory of Superlight Materials and Surface Technology Ministry of Education College of Material Science and Chemical Engineering Harbin Engineering University Harbin 150001, P. R.China;

    Key Laboratory of Superlight Materials and Surface Technology Ministry of Education College of Material Science and Chemical Engineering Harbin Engineering University Harbin 150001, P. R.China;

    Key Laboratory of Superlight Materials and Surface Technology Ministry of Education College of Material Science and Chemical Engineering Harbin Engineering University Harbin 150001, P. R.China;

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