Growth of single-crystal α-MnO2 nanotubes prepared by a hydrothermal route and their electrochemical properties

被引：220

作者：

Xiao, Wei ^{[1
]}

Xia, Hui ^{[1
]}

Fuh, Jerry Y. H. ^{[1
]}

Lu, Li ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Mech Engn, Singapore 117576, Singapore

来源：

JOURNAL OF POWER SOURCES | 2009年 / 193卷 / 02期

关键词：

Nanotube; Hydrothermal method; Energy conversion; Supercapacitor; Manganese dioxide; PSEUDOCAPACITANCE PROPERTIES; MNO2; NANOSTRUCTURES; ENERGY-CONVERSION; STORAGE;

D O I：

10.1016/j.jpowsour.2009.03.073

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：

Single-crystal alpha-MnO2 nanotubes are synthesized by a facile hydrothermal method without the assistance of a template, a surfactant and heat-treatment. The single-crystal alpha-MnO2 nanotube electrode possesses a high specific capacitance with a good power capability. The excellent pseudo-capacitive properties are attributed to a nanotubular microstructure and a large tunnel cavity in the alpha-MnO2 crystal structure. Single-crystal alpha-MnO2 nanotubes with good electrochemical performance can be a promising candidate as superrapacitor materials. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：935 / 938

页数：4

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