共 29 条
Capacitive characteristics of Ni-Co oxide nano-composite via coordination homogeneous co-precipitation method
被引:20
作者:
Deng, Jing-Jing
[1
]
Deng, Jian-Cheng
[1
]
Liu, Zi-Ling
[1
]
Deng, Hui-Ren
[1
]
Liu, Bo
[1
]
机构:
[1] Xiangtan Univ, Coll Chem, Minist Educ, Key Lab Environm Friendly Chem & Applicat, Xiangtan 411105, Hunan, Peoples R China
关键词:
MESOPOROUS NICKEL-OXIDE;
ELECTRODE MATERIAL;
ELECTROCHEMICAL CAPACITORS;
SUPERCAPACITOR APPLICATIONS;
FILMS;
PERFORMANCE;
MNO2;
D O I:
10.1007/s10853-009-3373-3
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
A series of Ni-Co oxide nano-composites were prepared by thermal decomposition of the precursors obtained via coordination homogeneous co-precipitation method. Thermogravimetric analysis (TGA), powder X-ray diffraction (XRD), and transition electron microscopy (TEM) tests were applied to investigate the thermal behavior, crystalline. and morphology of the Ni-Co oxide composites. The electrochemical properties of Ni-Co oxide electrodes were evaluated by cyclic voltammetry, galvanostatic charge-discharge, and electrochemical impedance measurements. Results showed that the calcination temperature had great effect on morphology and specific capacitance of product. The effect of the molar ratios of Ni2+/Co2+ in the reaction system on the electrochemical properties of Ni-Co oxide electrodes was also discussed.
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页码:2828 / 2835
页数:8
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