Effect of temperature on the performance of ultrafine MnO2 nanobelt supercapacitors

被引：111

作者：

Li, Wenyao ^{[1
,2
]}

Xu, Kaibing ^{[1
]}

An, Lei ^{[1
]}

Jiang, Feiran ^{[1
]}

Zhou, Xiying ^{[2
]}

Yang, Jianmao ^{[1
]}

Chen, Zhigang ^{[1
]}

Zou, Rujia ^{[1
]}

Hu, Junqing ^{[1
]}

机构：

[1] Donghua Univ, Coll Mat Sci & Engn, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China

[2] Shanghai Univ Engn Sci, Sch Mat Engn, Shanghai 201620, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2014年 / 2卷 / 05期

基金：

中国国家自然科学基金;

关键词：

ELECTROCHEMICAL PROPERTIES; NANOWIRES; ENERGY; ELECTROLYTE;

D O I：

10.1039/c3ta14182a

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have reported a facile, template-free and effective electrochemical method to grow MnO2 ultrafine nanobelts on Ni foam. Electrochemical measurements showed that the MnO2 nanobelt electrode exhibited an enhanced specific capacitance of 509 F g(-1) at 200 mA g(-1) at 50 degrees C. More importantly, the specific capacitance of the MnO2 nanobelt electrode nearly has 91.3% retention after 5000 cycles with repeated heating and cooling in the temperature range of 0 to 50 degrees C, showing good high temperature-resistive long-term cycle stability.

引用

页码：1443 / 1447

页数：5

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