A novel activated mesocarbon microbead(aMCMB)/Mn3O4 composite for electrochemical capacitors in organic electrolyte

A novel activated mesocarbon microbead(aMCMB)/Mn3O4 composite for electrochemical capacitors in organic electrolyte
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一种新型活性中间相碳微珠(aMCMB)/Mn3O4复合材料,用于有机电解质中的电化学电容器

DOI:
10.1016/j.jpowsour.2009.06.015
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发表时间:
2009-12
影响因子:
9.2
通讯作者:
Li, Zesheng
Li, Zesheng
中科院分区:
工程技术2区
文献类型:
--
作者:
Wang, Hongqiang;Zhong, Xinxian;Yang, Jianhong;Li, Qingyu;Li, Zesheng

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制备了一种新型的活性中间相炭微球(aMCMB)/Mn 3 O 4复合材料,用于电化学电容器。用扫描电镜和X射线衍射分析了复合材料的形貌和晶体结构。电化学研究表明,aMCMB/Mn 3 O 4复合材料在1.0molL− 1 LiPF 6(EC+DMC)中具有理想的电容性能。在330 mAg −1的电流密度下恒流充放电,复合材料的最大比电容为178 Fg − 1,Mn 3 O 4的比电容估计高达445 Fg −1。aMCMB/Mn 3 O 4复合材料具有理想的电容性能,是一种很有前途的电化学超级电容器电极材料。
A novel activated mesocarbon microbead(aMCMB)/Mn3O4composite is successfully prepared for electrochemical capacitors. The morphology and crystal structure of the composite are investigated by scanning electron microscopy and X-ray diffraction. The electrochemical studies indicate that the aMCMB/Mn3O4composite has ideal capacitive performance in 1.0molL−1LiPF6(EC+DMC). A maximum specific capacitance of 178Fg−1is obtained for the composite via galvanostatic charge–discharge at a current density of 330mAg−1, and the specific capacitance of Mn3O4is estimated to be as high as 445Fg−1. The aMCMB/Mn3O4composite material exhibits ideal capacitive behavior indicating a promising electrode material for electrochemical supercapacitors.
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