Asymmetric pseudo-capacitors based on dendrite-like MnO2 nanostructures

被引：37

作者：

Zhao, Yue ^{[1
]}

Dai, Meizhen ^{[1
]}

Zhao, Depeng ^{[1
]}

Xiao, Li ^{[1
]}

Wu, Xiang ^{[1
]}

Liu, Fei ^{[2
]}

机构：

[1] Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Liaoning, Peoples R China

[2] Sun Yat Sen Univ, Sch Elect & Informat Technol, Guangdong Prov Key Lab Display Mat & Technol, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China

来源：

CRYSTENGCOMM | 2019年 / 21卷 / 21期

关键词：

SHELL NANOWIRE ARRAYS; SUPERCAPACITOR ELECTRODES; ENERGY-STORAGE; ELECTROCHEMICAL PERFORMANCE; FACILE SYNTHESIS; HYBRID; CARBON; GRAPHENE; FOAM; NI;

D O I：

10.1039/c9ce00423h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Dendrite-like MnO2 nanostructures grown on carbon cloth are successfully prepared by a facile one-step route. The as-prepared nanoarchitecture delivers a specific capacity of 430 F g(-1) at 1 A g(-1) and excellent cycling stability. In addition, a quasi-solid-state asymmetric supercapacitor is assembled by using the dendrite-like MnO2 nanostructures as the positive electrode. It shows an energy density of 20.65 W h kg-1 at a power density of 437.30 W kg(-1) at a voltage window of 2.45 V. The results reveal that the assynthesized MnO2 products might be promising electrode materials for electrochemical energy storage.

引用

页码：3349 / 3355

页数：7

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