One dimensional nickel oxide-decorated cobalt oxide (Co3O4) composites for high-performance supercapacitors

被引：19
|
作者：
He, Fang [1 ]
Liu, Kaiyu [1 ,2 ]
Zhong, Jianjian [1 ]
Zhang, Shuirong [1 ]
Huang, Qi [1 ]
Chen, Cheng [1 ]
机构：
[1] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China
[2] Longyan Univ, Coll Chem & Mat Sci, Longyan 364012, Peoples R China
来源：
JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2015年 / 749卷
关键词：
One dimensional; Nickel oxide; Cobalt oxide; Supercapacitors; FACILE SYNTHESIS; ELECTRODES; FABRICATION; EVOLUTION; POROSITY;
D O I：
10.1016/j.jelechem.2015.04.040
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
One dimensional porous NiO-decorated Co3O4 composites were synthesized via a two-step solution-based method. The composites were detected by X-ray photoelectron spectroscopy (XPS), and it shows that the atomic ratio of nickle is about 1.74% in the composite. The obtained NiO-decorated Co3O4 composite yields a high specific capacitance of 1112 F g(-1) at a current density of 2 A g(-1), exhibits perfect rate and cycling stability. Furthermore, the specific capacitance of the composite can still keep a good retention of 97% after 1000 cycles at 2 A g(-1), demonstrating the excellent long-term electrochemical stability of the composite. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：89 / 95
页数：7
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