Design and synthesis of 3D Co3O4@MMoO4 (M=Ni, Co) nanocomposites as high-performance supercapacitor electrodes

doi:10.1016/j.electacta.2014.03.080

	Design and synthesis of 3D Co3O4@MMoO4 (M=Ni, Co) nanocomposites as high-performance supercapacitor electrodes
	Ma, Xue-Jing 1; Kong, Ling-Bin 1,2; Zhang, Wei-Bin 1; Liu, Mao-Cheng 1; Luo, Yong-Chun 2; Kang, Long 2
刊名	ELECTROCHIMICA ACTA
	2014-06
卷号	130 页码:660-669
关键词	supercapacitor 3D nanocomposites Ni foam specific capacitances asymmetric supercapacitors
ISSN号	0013-4686
DOI	10.1016/j.electacta.2014.03.080
英文摘要	Recent attentions have been focused on the synthesis and application of nanocomposites for supercapacitors, which can have superior electrochemical performance than single-structured materials. Here we designed and synthesized three-dimensional (3D) Co3O4@MMoO4 (M = Ni, Co) nanocomposites on Ni foam, which combined separately the advantages of the good rate capability of Co3O4 and the high specific capacitances of MMoO4 (M = Ni, Co), and the materials have shown surprising specific capacitances (2041 Fg(-1) of Co3O4@NiMoO4 and 857 Fg(-1) of Co3O4@CoMoO4 at a current density of 0.5 A g(-1)) and excellent cycling stability (72% capacitance retention of Co3O4@NiMoO4 and 100% capacitance retention of Co3O4@CoMoO4 after 3000 cycles). To enhance energy density, the asymmetric supercapacitors were assembled where Co3O4@MMoO4 (M = Ni, Co) and activated carbon (AC) acted as the positive and negative electrodes, respectively. The maximum specific capacitance (128 Fg(-1) of AC//Co3O4@NiMoO4 and 105 Fg(-1) of AC//Co3O4@CoMoO4) and the specific energy 41.9 Wh kg(-1) of AC//Co3O4@ NiMoO4 and 38 Wh kg(-1) of AC//Co3O4@CoMoO4) are demonstrated for a cell voltage between 0 to 1.6V, exhibiting a high energy density and stable power characteristics. (C) 2014 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[51362018][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	Electrochemistry
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000336880700086
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/34351]
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 Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Ma, Xue-Jing,Kong, Ling-Bin,Zhang, Wei-Bin,et al. Design and synthesis of 3D Co3O4@MMoO4 (M=Ni, Co) nanocomposites as high-performance supercapacitor electrodes[J]. ELECTROCHIMICA ACTA,2014,130:660-669.
APA	Ma, Xue-Jing,Kong, Ling-Bin,Zhang, Wei-Bin,Liu, Mao-Cheng,Luo, Yong-Chun,&Kang, Long.(2014).Design and synthesis of 3D Co3O4@MMoO4 (M=Ni, Co) nanocomposites as high-performance supercapacitor electrodes.ELECTROCHIMICA ACTA,130,660-669.
MLA	Ma, Xue-Jing,et al."Design and synthesis of 3D Co3O4@MMoO4 (M=Ni, Co) nanocomposites as high-performance supercapacitor electrodes".ELECTROCHIMICA ACTA 130(2014):660-669.