Self-supported core-shell heterostructure MnO2/NiCo-LDH composite for flexible high-performance supercapacitor

doi:10.1016/j.jallcom.2020.153929

	Self-supported core-shell heterostructure MnO2/NiCo-LDH composite for flexible high-performance supercapacitor
	Liu, Lianlian 1,2; Fang, Liang 2; Wu, Fang 2; Hu, Jia 2,3; Zhang, Shufang4,5 ; Luo, Haijun 5; Hu, Bashan 6; Zhou, Miao 7
	2020-05-25
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
EISSN	1873-4669
卷号	824
摘要	Nickel cobalt layered double hydroxides (NiCo-LDHs) nanosheets (NSs) were synthesized on a flexible carbon cloth (CC) substrate by a simple hydrothermal method. Then the manganese dioxide (MnO2) NSs were directly deposited on the NiCo-LDH/CC to form three-dimensional (3D) self-supported core-shell MnO2/NiCo-LDH/CC flexible electrodes. The MnO2 NSs with three different loading amount on NiCo-LDH/CC substrate, named MnO2-1/NiCo-LDH/CC, MnO2-2/NiCo-LDH/CC and MnO2-3/NiCo-LDH/CC, were hydrothermally synthesized in 0.01 M, 0.02 M and 0.03 M potassium permanganate (KMnO4) solution, respectively. The morphology and electrochemical performance of these obtained composite electrodes were observed and analyzed. The MnO2-2/NiCo-LDH/CC electrode exhibits a capacitive performance of 312 F g−1 at 0.2 A g−1 (937 mF cm−2 at 1 mV s−1) and maintains 97% of the original capacitance after 5000 charge-discharge cycles. The good mechanical stability and excellent cycle performance of MnO2-2/NiCo-LDH/CC electrode is benefit from the numerous channels for rapid electron transport provided by the large specific surface area and self-supported of NiCo-LDH nanoflakes. Therefore, the MnO2-2/NiCo-LDH/CC composite electrode is a potential candidate in wearable energy storage device. © 2020 Elsevier B.V.
关键词	Cobalt compounds Cobalt deposits Electric discharges Electrochemical electrodes Electron transport properties Manganese oxide Mechanical stability Morphology Potash Shells (structures) Supercapacitor Core-shell heterostructure Electrochemical performance Flexible electrodes Hydrothermally synthesized Large specific surface areas Layered double hydroxides Manganese dioxide Self-supported
DOI	10.1016/j.jallcom.2020.153929
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000514845900074
出版者	Elsevier Ltd
EI入藏号	20200508103991
EI分类号	408.2 Structural Members and Shapes ; 504.3 Heavy Metal Mines ; 701.1 Electricity: Basic Concepts and Phenomena ; 804 Chemical Products Generally ; 804.2 Inorganic Compounds ; 951 Materials Science
原始文献类型	Journal article (JA)
出版地	LAUSANNE
引用统计	被引频次：54[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.cqcet.edu.cn/handle/39TD4454/3013
专题	人工智能与大数据学院
作者单位	1.Institute of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong; Sichuan Province; 643000, China; 2.State Key Laboratory of Power Transmission Equipment & System Safety and New Technology, Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing; 400044, China; 3.National Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing; 400044, China; 4.College of Software, Chongqing College of Electronic Engineering, Chongqing; 401331, China; 5.Key Laboratory on Optoelectronic Functional Materials, College of Physics and Electronic Engineering, Chongqing Normal University Chongqing, 401331, China; 6.College of Chemistry and Chemical Engineering, Chongqing University, Chongqing; 401331, China; 7.Key Laboratory of Optoelectronic Technology and Systems of the Education Ministry of China, College of Optoelectronic Engineering, Chongqing University, Chongqing; 400044, China
推荐引用方式 GB/T 7714	Liu, Lianlian,Fang, Liang,Wu, Fang,et al. Self-supported core-shell heterostructure MnO2/NiCo-LDH composite for flexible high-performance supercapacitor[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2020,824.
APA	Liu, Lianlian.,Fang, Liang.,Wu, Fang.,Hu, Jia.,Zhang, Shufang.,...&Zhou, Miao.(2020).Self-supported core-shell heterostructure MnO2/NiCo-LDH composite for flexible high-performance supercapacitor.JOURNAL OF ALLOYS AND COMPOUNDS,824.
MLA	Liu, Lianlian,et al."Self-supported core-shell heterostructure MnO2/NiCo-LDH composite for flexible high-performance supercapacitor".JOURNAL OF ALLOYS AND COMPOUNDS 824(2020).