3D hierarchical MnO2 nanorod/welded Ag-nanowire-network composites for high-performance supercapacitor electrodes

被引:53
|
作者
Qiao, Zhensong [1 ]
Yang, Xiaopeng [1 ]
Yang, Shuhua [1 ]
Zhang, Liqiang [2 ,3 ]
Cao, Bingqiang [1 ]
机构
[1] Univ Jinan, Sch Mat Sci & Engn, Lab Inorgan Energy & Environm Mat, Jinan 250022, Shandong, Peoples R China
[2] China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China
[3] China Univ Petr, Dept Mat Sci & Engn, Beijing 102249, Peoples R China
基金
中国国家自然科学基金;
关键词
ASYMMETRIC SUPERCAPACITORS; MECHANISM;
D O I
10.1039/c6cc03768b
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
3D MnO2 nanorod/welded Ag-nanowire-network supercapacitor electrodes were prepared. Welding treatment of the Ag nanowire-network leads to low resistance and long lifetime. Galvanostatic charge/discharge (GCD) induces an ever-lasting morphology changing from flowerlike to honeycomb-like for MnO2, which manifests as increasing specific capacitance to 663.4 F g(-1) after 7000 GCD cycles.
引用
收藏
页码:7998 / 8001
页数:4
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