Preparation of La0.7Sr0.3CoO3- (LSC)@MnO2 core/shell nanorods as high-performance electrode materials for supercapacitors

doi:10.1007/s10854-018-0331-3

	Preparation of La0.7Sr0.3CoO3- (LSC)@MnO2 core/shell nanorods as high-performance electrode materials for supercapacitors
	He, Ling 1,2; Shu, Yao 1; Li, Wensheng 1; Liu, Maocheng 1
刊名	JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
	2019-01
卷号	30 期号:1 页码:17-25
ISSN号	0957-4522
DOI	10.1007/s10854-018-0331-3
英文摘要	Perovskite oxides have attracted significant attention as capacitor electrode materials owing to their unique physical and electronic properties. In this paper, a novel La0.7Sr0.3CoO3- (LSC)@MnO2 core-shell nanorod was synthesized by controlled electrospinning combined with hydrothermal synthesis. The LSC, as a typical perovskite-type material, with excellent stability and ion-electron double conductivity, can perfectly serve as conductive backbone. Grid-like MnO2 nanosheets are grown on LSC to form a unique core/shell nanostructure, could effectively improve the electrochemical performance of MnO2. The grid-like MnO2 nanosheets shell significantly increase the effective area over which the reaction may take place and reduce the ion/electron transmission distance, which is beneficial in that it shifts in ions and electrons, enhancing the electrochemical reaction kinetics thereof. LSC@MnO2 core/shell nanorods demonstrated good electrochemical performance with high capacitance (570Fg(-1) at 1Ag(-1)), and revealed excellent cycling stability (capacitance retention remains at 97.2% after 5000 cycles). The asymmetric supercapacitor device (LSC@MnO2//AC) displayed a desirable energy density of 37.6Whkg(-1) at 375Wkg(-1), and still remains at 23.3Whkg(-1) at a high power density of 7489.3Wkg(-1), indicating that the LSC@MnO2 nanorods are an outstanding pseudo-capacitive electrode material, with significant potential for application in high-performance supercapacitors.
资助项目	State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals[18LHPY006] ; Key Research and Development Program of Gansu Province[17JR7GA014] ; National Natural Science Foundation of China[51674130] ; Shenyang National Laboratory for Materials Science[18LHPY006]
WOS研究方向	Engineering ; Materials Science ; Physics
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000456048800003
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32193]
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	He, Ling
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	He, Ling,Shu, Yao,Li, Wensheng,et al. Preparation of La0.7Sr0.3CoO3- (LSC)@MnO2 core/shell nanorods as high-performance electrode materials for supercapacitors[J]. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS,2019,30(1):17-25.
APA	He, Ling,Shu, Yao,Li, Wensheng,&Liu, Maocheng.(2019).Preparation of La0.7Sr0.3CoO3- (LSC)@MnO2 core/shell nanorods as high-performance electrode materials for supercapacitors.JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS,30(1),17-25.
MLA	He, Ling,et al."Preparation of La0.7Sr0.3CoO3- (LSC)@MnO2 core/shell nanorods as high-performance electrode materials for supercapacitors".JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS 30.1(2019):17-25.