超级电容器用二氧化锰/碳基纳米复合材料的制备与电化学性能研究进展
Preparation and High Electrochemical Performance of Manganese dioxide@Carbon Nanocomposites for Supercapacitors
在超级电容器电极材料中,MnO2理论容量可以达到1370F/g,但自身导电率较低,导致其较差的电化学性能。因此,通过制备多孔、薄膜或者复合材料,获取较大的比表面积,提高其电导率。碳材料以其较低的电阻,良好的导电性和超大的比表面积及多孔性,成为MnO2理想的复合材料之选。碳材料不但能够提高复合材料的电导率而提高比容量,其充放电倍率性能及循环稳定性也得到了相应的提高。本文介绍了不同形貌和结构的MnO2/碳基纳米复合材料的制备方法,系统总结了其作为超级电容器电极材料的电化学性能的应用现状,并对其潜在研究方向进行了展望。
mong pesudocapacitor electrodes, MnO2 has stood out as the most promising materials due to high theoretical specific capacitance (1370F/g). However, it is highly challenging to reach this value due to the low electrical conductivity. To improve the electrical conductivity and boost the performance of pesudocapacitors, various nanostructures such as porous materials, thin films or nanocomposites have been used to achieve high surface area. Intriguingly, carbon-based materials have attracted much attention as a result of their promising features, such as low resistance, a large specific surface area, and excellent electrical conductivity. It is therefore absolutely vital to develop MnO2/Carbon nanocomposites to achieve high specific capacitance, reversible charge/discharge performance and good stability. Herein, the preparative methodologies of MnO2/C nanocomposites with different morphologies and structures were summarized. And their electrochemical properties for supercapacitor electrodes were examined, followed by introduction of their application prospects in near future.
张育新、董萌、朱士锦
电化学工业
纳米材料二氧化锰电化学性能超级电容器
nanomaterialsmanganese dioxideelectrochemical propertiessupercapercitor
张育新,董萌,朱士锦.超级电容器用二氧化锰/碳基纳米复合材料的制备与电化学性能研究进展[EB/OL].(2013-08-02)[2025-07-25].http://www.paper.edu.cn/releasepaper/content/201308-16.点此复制
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