A Sol-Gel Process for Fabrication of NiO/NiCo2O4/Co3O4 Composite with Improved Electrochemical Behavior for Electrochemical Capacitors

doi:10.1021/am301010u

	A Sol-Gel Process for Fabrication of NiO/NiCo2O4/Co3O4 Composite with Improved Electrochemical Behavior for Electrochemical Capacitors
	Liu, Mao-Cheng1 ; Kong, Ling-Bin1,2 ; Lu, Chao 1; Li, Xiao-Ming 1; Luo, Yong-Chun2 ; Kang, Long 2
	2012-09
发表期刊	ACS APPLIED MATERIALS & INTERFACES
ISSN	1944-8244
卷号	4 期号:9 页码:4631-4636
摘要	Transition metal oxides possess multiple oxidation states that enable rich redox reactions for pseudo capacitanc. They have been investigated as promising electrode materials to achieve high energy density. In this study, NiO/NiCo2O4/Co3O4 composite with high specific surface and mesoporous structure is fabricated by a sol-gel process then calcined at 250 degrees C. Benefits from the improved electron conductivity and effective mesoporous structure, the fabricated composite exhibits high specific capacitance (1717 F g(-1)), enhanced rate capability, and excellent electrochemical stability (94.9% retention after 1000 cycles). Interestingly, the specific capacitance of the composite is higher than that of NiO, NiCo2O4, and Co3O4, which indicates a synergistic effect of the composite on improvement of electrochemical performance. The findings demonstrate the importance and great potential of NiO/NiCo2O4/Co3O4 composite in development of high-performance energy-storage systems.
关键词	supercapacitor mesoporous composite mixed metal oxides capacitive performance
DOI	10.1021/am301010u
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[21163010] ; Key Project of Chinese Ministry of Education[212183] ; Natural Science Funds for Distinguished Young Scholars of Gansu Province[1111RJDA012]
WOS研究方向	Science & Technology - Other Topics ; Materials Science
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000309099800029
出版者	AMER CHEMICAL SOC
引用统计	被引频次：189[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/34850
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Kong, Ling-Bin
作者单位	1.Lanzhou Univ Technol, State Key Lab Gansu Adv Nonferrous Met Mat, Lanzhou 730050, Peoples R China 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China
第一作者单位	省部共建有色金属先进加工与再利用国家重点实验室
通讯作者单位	省部共建有色金属先进加工与再利用国家重点实验室; 材料科学与工程学院
第一作者的第一单位	省部共建有色金属先进加工与再利用国家重点实验室
推荐引用方式 GB/T 7714	Liu, Mao-Cheng,Kong, Ling-Bin,Lu, Chao,et al. A Sol-Gel Process for Fabrication of NiO/NiCo2O4/Co3O4 Composite with Improved Electrochemical Behavior for Electrochemical Capacitors[J]. ACS APPLIED MATERIALS & INTERFACES,2012,4(9):4631-4636.
APA	Liu, Mao-Cheng,Kong, Ling-Bin,Lu, Chao,Li, Xiao-Ming,Luo, Yong-Chun,&Kang, Long.(2012).A Sol-Gel Process for Fabrication of NiO/NiCo2O4/Co3O4 Composite with Improved Electrochemical Behavior for Electrochemical Capacitors.ACS APPLIED MATERIALS & INTERFACES,4(9),4631-4636.
MLA	Liu, Mao-Cheng,et al."A Sol-Gel Process for Fabrication of NiO/NiCo2O4/Co3O4 Composite with Improved Electrochemical Behavior for Electrochemical Capacitors".ACS APPLIED MATERIALS & INTERFACES 4.9(2012):4631-4636.