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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Sandwich-like GO@Co(OH)(2)/PANI derived from MOFs as high-performance electrode for supercapacitors
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Sandwich-like GO@Co(OH)(2)/PANI derived from MOFs as high-performance electrode for supercapacitors

机译：Sandwich样Go @ Co（OH）（2）/ PANI从MOFS衍生的超级电容器的高性能电极

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摘要

Sandwich-like layered composite materials possess a high contact area and can expose many reactive active sites, which exhibit great potential in the application of supercapacitors. In this paper, a sandwich-like composite material was synthesized based on polyaniline (PANI), graphene oxide (GO) and ZIF-67 (denoted as GO@ZIF-67/PANI). Among them, GO is designed as a deposition substrate of ZIF-67 and transfer scaffold of electrons and PANI works as a wire to connect graphene layers and nanoparticles, which increases the conductivity of the material and makes the electron transfer easier. At the current density of 1 A g(-1), the specific capacitance of the ZIF-67 composite is up to 5 times that of the ZIF-67. After alkali treatment, ZIF-67 is converted into Co(OH)(2) nanosheet (denoted as GO@Co(OH)(2)/PANI), which remarkably promotes the transfer of electrolyte ions and electrons. At the current density of 1 A g(-1), the resulting specific capacitance is 15 times more than ZIF-67. The excellent energy storage performance indicates that the prepared novel composite material has important development prospects in energy storage. (C) 2020 Published by Elsevier B.V.
机译：三明治状层状复合材料具有很高的接触面积，可以暴露出许多活性中心，在超级电容器的应用中显示出巨大的潜力。本文以聚苯胺（PANI）、氧化石墨烯（GO）和ZIF-67（简称ZIF-67）为原料，合成了一种三明治状复合材料GO@ZIF-67/帕尼）。其中，GO被设计为ZIF-67的沉积基底和电子转移支架，而PANI则作为连接石墨烯层和纳米颗粒的导线，这增加了材料的导电性，使电子转移更容易。在电流密度为1ag（-1）时，ZIF-67复合材料的比电容是ZIF-67的5倍。经过碱处理后，ZIF-67转化为Co（OH）（2）纳米片（表示为GO@Co（OH）（2）/PANI），显著促进电解质离子和电子的转移。在电流密度为1A g（-1）时，产生的比电容是ZIF-67的15倍。优异的储能性能表明所制备的新型复合材料在储能领域具有重要的发展前景。（C） 2020年爱思唯尔公司出版。

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  • 来源
  • 作者

    Xu Mengni; Guo Hao; Xue Rui; Wang Mingyue; Wu Ning; Wang Xiaoqiong; Zhang Junye; Zhang Tingting; Yang Wu;

  • 作者单位

    Northwest Normal Univ Coll Chem &

    Chem Engn Key Lab Bioelectrochem &

    Environm Anal Gansu Prov Key Lab Ecoenvironm Related Polymer Mat MOE Gansu Lanzhou 730070 Peoples R China;

    Northwest Normal Univ Coll Chem &

    Chem Engn Key Lab Bioelectrochem &

    Environm Anal Gansu Prov Key Lab Ecoenvironm Related Polymer Mat MOE Gansu Lanzhou 730070 Peoples R China;

    Lanzhou City Univ Coll Chem &

    Chem Engn 11 Jiefang Rd Lanzhou 730070 Gansu Peoples R China;

    Northwest Normal Univ Coll Chem &

    Chem Engn Key Lab Bioelectrochem &

    Environm Anal Gansu Prov Key Lab Ecoenvironm Related Polymer Mat MOE Gansu Lanzhou 730070 Peoples R China;

    Northwest Normal Univ Coll Chem &

    Chem Engn Key Lab Bioelectrochem &

    Environm Anal Gansu Prov Key Lab Ecoenvironm Related Polymer Mat MOE Gansu Lanzhou 730070 Peoples R China;

    Northwest Normal Univ Coll Chem &

    Chem Engn Key Lab Bioelectrochem &

    Environm Anal Gansu Prov Key Lab Ecoenvironm Related Polymer Mat MOE Gansu Lanzhou 730070 Peoples R China;

    Northwest Normal Univ Coll Chem &

    Chem Engn Key Lab Bioelectrochem &

    Environm Anal Gansu Prov Key Lab Ecoenvironm Related Polymer Mat MOE Gansu Lanzhou 730070 Peoples R China;

    Northwest Normal Univ Coll Chem &

    Chem Engn Key Lab Bioelectrochem &

    Environm Anal Gansu Prov Key Lab Ecoenvironm Related Polymer Mat MOE Gansu Lanzhou 730070 Peoples R China;

    Northwest Normal Univ Coll Chem &

    Chem Engn Key Lab Bioelectrochem &

    Environm Anal Gansu Prov Key Lab Ecoenvironm Related Polymer Mat MOE Gansu Lanzhou 730070 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 合金学与各种性质合金;金属材料;
  • 关键词

    Supercapacitor; Polyaniline; Graphene oxide; Zeolitic imidazolate framework-67; Pseudocapacitance;

    机译：超级电容器;聚苯胺;石墨烯氧化物;沸石咪唑酯框架-67;假偶像;

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