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首页> 外文期刊>Nanotechnology >Facile fabrication and electrochemical oxidation of activated carbon microtube bundles for advanced all-solid-state supercapacitors
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Facile fabrication and electrochemical oxidation of activated carbon microtube bundles for advanced all-solid-state supercapacitors

机译：用于先进全固态超级电容器的活性炭微管束的容易制造和电化学氧化

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The energy density of carbon microtube bundles (CMTBs) is usually low and the preparation process is complex. After carbonization, washing and activation, the prepared metaplexis shell-based carbon microtube bundles (MS-CMTBs) not only have an open structure, but also a rich porous structure on the tube wall. The pulsed electrooxidation technology can promote the formation of functional groups on the tube wall and further enhance the energy density of the material. After assembling the electrooxidized material into an all-solid-state supercapacitor, the capacitor has a capacity of 15.1 Wh kg(-1)at 0.5 A g(-1)and a capacity retention rate of 95.9% after 10 000 cycles at 10 A g(-1), indicating that these functional groups are relatively stable. The result shows that the MS-CMTBs before pulsed electrooxidation are more suitable as positive electrode materials, while the electrooxidized material can be either a positive or negative electrode material. This work provides an idea for the design and development of electrode materials in high-performance all-solid-state supercapacitors.
机译：碳微管束（CMTBS）的能量密度通常很低，制备方法复杂。在碳化，洗涤和活化之后，制备的核糖壳基碳微管束（MS-CMTBS）不仅具有开放的结构，而且还具有富孔结构在管壁上。脉冲电氧化技术可以促进管壁上的官能团的形成，并进一步增强材料的能量密度。在将电氧化材料组装成全固态超级电容器之后，电容器的容量为0.5Ag（-1）的容量为0.5Ag（-1），并且在10 000周期后的容量保持率为95.9％ G（-1），表明这些官能团相对稳定。结果表明，脉冲电氧化前的MS-CMTB更适合作为正极材料，而电化氧化材料可以是正极或负极材料。这项工作为高性能全固态超级电容器中的电极材料的设计和开发提供了一个想法。

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