An asymmetric supercapacitor with both ultra-high gravimetric and volumetric energy density based on 3D Ni(OH)2/MnO2@carbon nanotube and activated polyaniline-derived carbon

doi:10.1021/acsami.6b12370

	An asymmetric supercapacitor with both ultra-high gravimetric and volumetric energy density based on 3D Ni(OH)2/MnO2@carbon nanotube and activated polyaniline-derived carbon
	Shen, Juanjuan 1,2,3; Li, Xiaocheng 2,3; Wan, Liu 3; Liang, Kun 4; Tay, Beng Kang 4; Kong, Lingbin 2; Yan, Xingbin 3
刊名	ACS Applied Materials and Interfaces
	2017
卷号	9 期号:1 页码:668-676
关键词	Chemical vapor deposition Electrodes Nickel compounds Polyaniline Shells (structures) Supercapacitor Asymmetric supercapacitor Derived carbons Energy density Mass loadings Nickel hydroxides
ISSN号	19448244
DOI	10.1021/acsami.6b12370
英文摘要	Development of a supercapacitor device with both high gravimetric and volumetric energy density is one of the most important requirements for their practical application in energy storage/conversion systems. Currently, improvement of the gravimetric/volumetric energy density of a supercapacitor is restricted by the insufficient utilization of positive materials at high loading density and the inferior capacitive behavior of negative electrodes. To solve these problems, we elaborately designed and prepared a 3D core-shell structured Ni(OH)2/MnO2@carbon nanotube (CNT) composite via a facile solvothermal process by using the thermal chemical vapor deposition grown- CNTs as support. Owing to the superiorities of core-shell architecture in improving the service efficiency of pseudocapacitive materials at high loading density, the prepared Ni(OH)2/MnO2@CNT electrode demonstrated a high capacitance value of 2648 F g-1 (1 A g-1) at a high loading density of 6.52 mg cm-2. Coupled with high-performance activated polyaniline-derived carbon (APDC, 400 F g-1 at 1 A g-1), the assembled Ni(OH)2/MnO2@CNT//APDC asymmetric device delivered both high gravimetric and volumetric energy density (126.4 Wh kg-1 and 10.9 mWh cm-3, respectively), together with superb rate performance and cycling lifetime. Moreover, we demonstrate an effective approach for building a high-performance supercapacitor with high gravimetric/volumetric energy density. © 2016 American Chemical Society.
WOS研究方向	Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	American Chemical Society
WOS记录号	WOS:000392037400079
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114901]
专题	材料科学与工程学院
作者单位	1.University of Chinese Academy of Science, Beijing; 100080, China; 2.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Lanzhou University of Technology, Lanzhou; 730050, China; 3.Laboratory of Clean Energy Chemistry and Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou; 730000, China; 4.School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore; 639798, Singapore
推荐引用方式 GB/T 7714	Shen, Juanjuan,Li, Xiaocheng,Wan, Liu,et al. An asymmetric supercapacitor with both ultra-high gravimetric and volumetric energy density based on 3D Ni(OH)2/MnO2@carbon nanotube and activated polyaniline-derived carbon[J]. ACS Applied Materials and Interfaces,2017,9(1):668-676.
APA	Shen, Juanjuan.,Li, Xiaocheng.,Wan, Liu.,Liang, Kun.,Tay, Beng Kang.,...&Yan, Xingbin.(2017).An asymmetric supercapacitor with both ultra-high gravimetric and volumetric energy density based on 3D Ni(OH)2/MnO2@carbon nanotube and activated polyaniline-derived carbon.ACS Applied Materials and Interfaces,9(1),668-676.
MLA	Shen, Juanjuan,et al."An asymmetric supercapacitor with both ultra-high gravimetric and volumetric energy density based on 3D Ni(OH)2/MnO2@carbon nanotube and activated polyaniline-derived carbon".ACS Applied Materials and Interfaces 9.1(2017):668-676.