MnO sub(2) ultralong nanowires with better electrical conductivity and enhanced supercapacitor performances

Single-crystal alpha -MnO sub(2) ultralong nanowires ( similar to 40 mu m in length, similar to 15 nm in diameter), which were synthesized by a simple polyvinylpyrrolidone (PVP) assisted hydrothermal route, exhibited a better electrical conductivity, a highest specific capacitance of 345 F g super(-...

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Published inJournal of materials chemistry Vol. 22; no. 30; pp. 14864 - 14867
Main Authors Li, Wenyao, Liu, Qian, Sun, Yangang, Sun, Jianqing, Zou, Rujia, Li, Gao, Hu, Xianghua, Song, Guosheng, Ma, Guanxiang, Yang, Jianmao, Chen, Zhigang, Hu, Junqing
Format Journal Article
LanguageEnglish
Published 01.07.2012
Subjects
Capacitors
Cycles
Electrical conductivity
Electrical resistivity
Nanowires
Polyvinylpyrrolidone
Resistivity
Stability
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Summary:Single-crystal alpha -MnO sub(2) ultralong nanowires ( similar to 40 mu m in length, similar to 15 nm in diameter), which were synthesized by a simple polyvinylpyrrolidone (PVP) assisted hydrothermal route, exhibited a better electrical conductivity, a highest specific capacitance of 345 F g super(-1) at a current density of 1 A g super(-1) with high rate capability (54.7% at 10 A g super(-1)) and good cycling stability.
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ISSN:0959-9428
1364-5501
DOI:10.1039/c2jm33368f