Hydrothermal-synthesized Co(OH)2 nanocone arrays for supercapacitor application

被引：109

作者：

Cao, F. ^{[1
]}

Pan, G. X. ^{[1
]}

Tang, P. S. ^{[1
]}

Chen, H. F. ^{[1
]}

机构：

[1] Huzhou Teachers Coll, Dept Chem, Huzhou 313000, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2012年 / 216卷

关键词：

Cobalt hydroxide; Nanowire arrays; Supercapacitor; Porous film; ELECTROCHEMICAL ENERGY-STORAGE; COBALT HYDROXIDE; Y-ZEOLITE; CAPACITORS; ELECTRODES; DEPOSITION; FILM; PERFORMANCE; NANOWIRES; COMPOSITE;

D O I：

10.1016/j.jpowsour.2012.05.073

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：

Co(OH)(2) nanocone arrays are prepared by a facile hydrothermal synthesis method. The Co(OH)(2) nanocones are single crystalline in nature and have an average diameter of about 200 nm. The pseudocapacitive behavior of the Co(OH)(2) nanocone arrays is investigated by cyclic voltammograms (CV) and galvanostatic charge-discharge tests in 2 M KOH. As cathode for supercapacitor, the Co(OH)(2) nanocone arrays exhibit a capacitance of 562 F g(-1) at 2 A g(-1) as well as rather good cycling stability. The enhanced supercapacitor performances are due to the porous array architecture providing fast ion and electron transfer, large reaction surface area and good strain accommodation. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：395 / 399

页数：5

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