Controllable synthesis of CoAl LDH@Ni(OH)(2) nanosheet arrays as binder-free electrode for supercapacitor applications

doi:10.1016/j.jallcom.2014.04.131

	Controllable synthesis of CoAl LDH@Ni(OH)(2) nanosheet arrays as binder-free electrode for supercapacitor applications
Department	固体润滑国家重点实验室
	Hong W(洪伟)1,2 ; Wang JQ(王金清)1 ; Niu LY(牛棱渊)1,2; Sun JF(孙金凤)1,2 ; Gong PW(公培伟)1,2 ; Yang SR(杨生荣)1 ; Wang JQ(王金清); Yang SR(杨生荣)
	2014
Source Publication	Journal of Alloys and Compounds
ISSN	0925-8388
Volume	608 Pages:297-303
Abstract	Electrodes with novel hierarchical nanoarchitectures can offer many opportunities for achieving the enhanced performance in energy storage. Herein, we have designed and synthesized 3D hierarchical structures of CoAl LDH@Ni(OH)₂ nanosheet arrays (NSAs) by a facile two-step route. Compared with the pristine CoAl LDH NSAs, the hierarchical CoAl LDH@Ni(OH)₂ NSAs represents much better capacitive behaviors. Specifically, under the same test conditions, CoAl LDH@Ni(OH)₂ electrode exhibits the maximum specific capacitance of 1528 F g^_1 (by galvanostatic discharge at the current density of 5 mA cm^_2 in 2 M KOH, based on the total mass; that for CoAl LDH NSAs is only 738 F g^_1) and excellent cycling performance (retaining 92% of its original capacitance after 1300 times of cycling). Such enhanced supercapacitor performances can be attributed to the novel 3D architectures, which can benefit the full contact of the Ni(OH)₂ layer with OH^_ in the electrolyte.
Keyword	Hierarchical Nanostructure Pseudocapacitor Electrodeposition Layered Double Hydroxides Nickel Hydroxide
Subject Area	材料科学与物理化学
DOI	10.1016/j.jallcom.2014.04.131
Funding Organization	the National Natural Science Foundation of China (Grant No. 51205385);the ‘‘Funds for Distinguished Young Scientists of Gansu Province’’ scheme
Indexed By	SCI
If	2.999
Language	英语
Funding Project	聚合物摩擦学组
compositor	第一作者单位
Citation statistics	Cited Times:64[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.licp.cn/handle/362003/6973
Collection	固体润滑国家重点实验室（LSL）
Corresponding Author	Wang JQ(王金清); Yang SR(杨生荣)
Affiliation	1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100080, Peoples R China
Recommended Citation GB/T 7714	Hong W,Wang JQ,Niu LY,et al. Controllable synthesis of CoAl LDH@Ni(OH)(2) nanosheet arrays as binder-free electrode for supercapacitor applications[J]. Journal of Alloys and Compounds,2014,608:297-303.
APA	Hong W.,Wang JQ.,Niu LY.,Sun JF.,Gong PW.,...&杨生荣.(2014).Controllable synthesis of CoAl LDH@Ni(OH)(2) nanosheet arrays as binder-free electrode for supercapacitor applications.Journal of Alloys and Compounds,608,297-303.
MLA	Hong W,et al."Controllable synthesis of CoAl LDH@Ni(OH)(2) nanosheet arrays as binder-free electrode for supercapacitor applications".Journal of Alloys and Compounds 608(2014):297-303.

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