title: Supercapacitor electrode with a homogeneously Co3O4-coated multiwalled carbon nanotube for a high capacitance.
abstract: 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.
authors.affiliation: Key Laboratory of Photovoltaic Materials of Henan Province and School of Physics and Electronics, Henan University, Kaifeng, 475001 China.
authors.forename: Li
authors.initials: L
authors.lastname: Tao
authors.affiliation: Key Laboratory of Photovoltaic Materials of Henan Province and School of Physics and Electronics, Henan University, Kaifeng, 475001 China.
authors.forename: Li
authors.initials: L
authors.lastname: Shengjun
authors.affiliation: Key Laboratory of Photovoltaic Materials of Henan Province and School of Physics and Electronics, Henan University, Kaifeng, 475001 China.
authors.forename: Zhang
authors.initials: Z
authors.lastname: Bowen
authors.affiliation: Key Laboratory of Photovoltaic Materials of Henan Province and School of Physics and Electronics, Henan University, Kaifeng, 475001 China.
authors.forename: Wang
authors.initials: W
authors.lastname: Bei
authors.affiliation: Department of Basic Courses, Yellow River Conservancy Technical Institute, Kaifeng, 475001 China.
authors.forename: Nie
authors.initials: N
authors.lastname: Dayong
authors.affiliation: Key Laboratory of Photovoltaic Materials of Henan Province and School of Physics and Electronics, Henan University, Kaifeng, 475001 China.
authors.forename: Chen
authors.initials: C
authors.lastname: Zeng
authors.affiliation: Key Laboratory of Photovoltaic Materials of Henan Province and School of Physics and Electronics, Henan University, Kaifeng, 475001 China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Ying
authors.affiliation: Key Laboratory of Photovoltaic Materials of Henan Province and School of Physics and Electronics, Henan University, Kaifeng, 475001 China.
authors.forename: Wan
authors.initials: W
authors.lastname: Ning
authors.affiliation: Key Laboratory of Photovoltaic Materials of Henan Province and School of Physics and Electronics, Henan University, Kaifeng, 475001 China.
authors.forename: Zhang
authors.initials: Z
authors.lastname: Weifeng
keywords: Charge–discharge; Cobalt oxide; Multiwalled carbon nanotube; Supercapacitor