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首页> 外文期刊>RSC Advances >Mesoporous Co3O4@carbon composites derived from microporous cobalt-based porous coordination polymers for enhanced electrochemical properties in supercapacitors
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Mesoporous Co3O4@carbon composites derived from microporous cobalt-based porous coordination polymers for enhanced electrochemical properties in supercapacitors

机译：中孔CO3O4 @碳复合材料衍生自微孔钴基多孔配位聚合物，用于增强超级电容器的电化学性质

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摘要

In this work, mesoporous Co3O4@carbon composites were prepared through a simple, one-step, carbonization of microporous cobalt-based porous coordination polymer ZSA-1. After the carbonization, the original octahedral shape of the precursor ZSA-1 has been well preserved, and the obtained octahedrons consisted of irregular nanoparticles with an average size of 10 nm. The as-synthesized Co3O4@carbon composites displayed mesoporous apertures with an average pore size of 3.6 nm. The octahedral Co3O4@carbon composites were evaluated as an electrode material of supercapacitors by cyclic voltammetry (CV) and galvanostatic charge/discharge tests. The electrochemical results show that the mesoporous Co3O4@carbon composites exhibit a specific capacitance of 205.4 F g(-1) at a current density of 0.2 A g(-1). Furthermore, the characterization of mesoporous Co3O4@carbon composites was fully developed, including powder X-ray diffraction, scanning electron microscopy, transmission electron microscopy, N-2 adsorption, thermal gravimetric analyses, and Raman spectroscopy.
机译：在这项工作中，通过简单的一步，碳化基于微孔的钴基多孔配位聚合物ZSA-1制备了介孔CO 3O4 @碳复合材料。在碳化之后，预先保存了前体ZSA-1的原始八面体形状，并且所获得的八面金属由平均尺寸为10nm的不规则纳米粒子组成。 AS合成的CO3O4 @碳复合材料显示介孔孔，平均孔径为3.6nm。通过循环伏安法（CV）和GALVANOTATIC电荷/放电测试评价八面体CO3O4 @碳复合材料作为超级电容器的电极材料。电化学结果表明，中孔CO3O4碳复合材料在0.2Ag（-1）的电流密度下表现出205.4fg（-1）的特定电容。此外，完全开发了介孔CO3O4 @碳复合材料的表征，包括粉末X射线衍射，扫描电子显微镜，透射电子显微镜，N-2吸附，热重分析和拉曼光谱。

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  • 来源
    《RSC Advances》 |2016年第22期|共6页
  • 作者

    Wang Shuang; Wang Ting; Shi Ying; Liu Guang; Li Jinping;

  • 作者单位

    Taiyuan Univ Technol Res Inst Special Chem Taiyuan 030024 Peoples R China;

    Taiyuan Univ Technol Res Inst Special Chem Taiyuan 030024 Peoples R China;

    Taiyuan Univ Technol Res Inst Special Chem Taiyuan 030024 Peoples R China;

    Taiyuan Univ Technol Res Inst Special Chem Taiyuan 030024 Peoples R China;

    Taiyuan Univ Technol Res Inst Special Chem Taiyuan 030024 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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