Supercapacitor electrode with a homogeneously Co3O4-coated multiwalled carbon nanotube for a high capacitance

被引：70

作者：

Tao, Li ^{[1
,2
]}

Li Shengjun ^{[1
,2
]}

Zhang Bowen ^{[1
,2
]}

Bei, Wang ^{[1
,2
]}

Nie Dayong ^{[3
]}

Zeng, Chen ^{[1
,2
]}

Ying, Yan ^{[1
,2
]}

Ning, Wan ^{[1
,2
]}

Zhang Weifeng ^{[1
,2
]}

机构：

[1] Henan Univ, Key Lab Photovolta Mat Henan Prov, Kaifeng 475001, Peoples R China

[2] Henan Univ, Sch Phys & Elect, Kaifeng 475001, Peoples R China

[3] Yellow River Conservancy Tech Inst, Dept Basic Courses, Kaifeng 475001, Peoples R China

来源：

NANOSCALE RESEARCH LETTERS | 2015年 / 10卷

关键词：

Supercapacitor; Cobalt oxide; Multiwalled carbon nanotube; Charge-discharge; ELECTROCHEMICAL CHARACTERIZATION; CO3O4; PERFORMANCE; MORPHOLOGY; ARRAYS; MNO2; MICROSPHERES; COMPOSITES; CATHODE; HYBRID;

D O I：

10.1186/s11671-015-0915-2

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Cobalt oxide (Co3O4) was homogeneously coated on multiwalled carbon nanotube through a simple chemical deposition method and employed in supercapacitor electrodes. SEM image indicated the uniform distribution of Co3O4 nanoparticles on the surface of the multiwalled carbon nanotube. A maximum specific capacitance of 273 Fg(-1) was obtained at the charge-discharge current density of 0.5 Ag-1. After 500 cycles of continuous charge-discharge process, about 88% of the initial capacity could be retained.

引用

页数：7

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