Characterization and supercapacitor application of coin-like β-nickel hydroxide nanoplates

被引：80

作者：

Li, Hongliang ^{[1
,2
,3
,4
]}

Liu, Suqin ^{[1
,2
]}

Huang, Chenghuan ^{[1
,2
,3
,4
]}

Zhou, Zhi ^{[1
,2
,3
,4
]}

Li, Yanhua ^{[1
,3
]}

Fang, Dong ^{[1
,4
]}

机构：

[1] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China

[2] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China

[3] Changsha Aeronaut Vocat & Tech Coll, Dept Chem Engn & Informat Engn, Changsha 410014, Hunan, Peoples R China

[4] Wuhan Text Univ, Minist Educ, Key Lab Green Proc & Funct Text New Text Mat, Wuhan 430073, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2011年 / 58卷

关键词：

beta-Nickel hydroxide; Coordination homogeneous precipitation; Supercapacitor behavior; ELECTROCHEMICAL CAPACITORS; BETA-NI(OH)(2); PRECIPITATION; PERFORMANCE; BATTERIES; ENERGY; CELLS;

D O I：

10.1016/j.electacta.2011.08.120

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Coin-like nickel hydroxide nanoplates are synthesized via a simple coordination homogeneous precipitation method. The structure and morphology of as-prepared products are characterized by X-ray diffraction, Fourier transform infrared spectroscopy, transmission electron microscopy and scanning electron microscopy. It is demonstrated that the products are typical beta-nickel hydroxide with bunches coin-like nanoplates morphology. The electrochemical properties of coin-like beta-Ni(OH)(2) are examined by cyclic voltammetric, chronopotentiometry and electrochemical impedance spectroscope. Cyclic voltammetric studies show that the electrodes have good reversibility. A specific capacitance of 1532 F g(-1) is obtained at a charge/discharge current density of 0.2 A g(-1). (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：89 / 94

页数：6

共 32 条

[1] Synthesis, characterization, and electrochemical properties of ultrafine β-Ni(OH)2 nanoparticles [J].