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

页码：89 / 95

页数：7

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