VOOH nanosheets with enhanced capacitance as supercapacitor electrode

doi:10.1016/j.jallcom.2021.159367

HFCAS OpenIR

	VOOH nanosheets with enhanced capacitance as supercapacitor electrode
	Xu, Chang 1,2; Li, Ming1,3 ; Li, Kaibin 1,2; Du, Zengyan 1,2; Chen, Jiawang 1,2; Zou, Fengxia 1,2; Xu, Sichao1 ; Li, Nian1 ; Li, Guanghai1,2
	2021-07-15
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
通讯作者	Li, Ming(liming@issp.ac.cn) ; Li, Nian(linian@issp.ac.cn) ; Li, Guanghai(ghli@issp.ac.cn)
摘要	Vanadyl hydroxide (VOOH) nanosheets have been synthesized for the first time using commercial vanadium pentoxide (V2O5) as vanadium source by a facile one-step hydrothermal reaction. The morphology and crystal structure of VOOH can be controlled simply by adjusting the ratio of ethylene glycol (EG) to deionized water (H2O) in the hydrothermal reaction. The electrochemical performance of the VOOH nanosheets as electrode material for supercapacitors was investigated in 1 mol L-1 LiClO4/propylene carbonate, and it was found that the highest specific capacitance of the VOOH nanosheets is 323 F g(-1) at a current density of 0.2 A g(-1) due to their higher specific surface area and electrochemical activity, which is 3 times large than that of VOOH nanoparticles and the reported VOOH hollow spheres. Meanwhile, the VOOH nanosheets also show a good cycling stability with a capacitance retention of 70% after 2000 cycles at a current density of 2 A g(-1). This work demonstrates that the VOOH nanosheets, as a new member of two-dimensional materials family, not only can be simply synthesized by hydrothermal method, but also show an excellent electrochemical performance for supercapacitor applications. (C) 2021 Elsevier B.V. All rights reserved.
关键词	VOOH nanosheets VOOH nanoparticles Hydrothermal reaction Electrochemical performance Supercapacitor electrode
DOI	10.1016/j.jallcom.2021.159367
关键词[WOS]	HYDROTHERMAL SYNTHESIS ; VANADIUM-OXIDE ; ELECTROCHEMICAL PROPERTIES ; LEPIDOCROCITE VOOH ; PHASE-TRANSITION ; LITHIUM ; CORE ; VO2
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[12074356] ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology[2018CXFX003] ; Open Research Fund of State Key Laboratory of Pulsed Power Laser Technology[SKL2018KF07] ; Natural Science Foundation of Anhui Province[1808085ME131]
项目资助者	National Natural Science Foundation of China ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; Open Research Fund of State Key Laboratory of Pulsed Power Laser Technology ; Natural Science Foundation of Anhui Province
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:000638274800096
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/122630
专题	中国科学院合肥物质科学研究院
通讯作者	Li, Ming; Li, Nian; Li, Guanghai
作者单位	1.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Solid State Phys, Anhui Key Lab Nanomat & Nanotechnol,Key Lab Mat P, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Anhui Univ, Minist Educ, Key Lab Struct & Funct Regulat Hybrid Mat, Hefei 230601, Peoples R China
第一作者单位	中科院固体物理研究所
通讯作者单位	中科院固体物理研究所
推荐引用方式 GB/T 7714	Xu, Chang,Li, Ming,Li, Kaibin,et al. VOOH nanosheets with enhanced capacitance as supercapacitor electrode[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2021,869.
APA	Xu, Chang.,Li, Ming.,Li, Kaibin.,Du, Zengyan.,Chen, Jiawang.,...&Li, Guanghai.(2021).VOOH nanosheets with enhanced capacitance as supercapacitor electrode.JOURNAL OF ALLOYS AND COMPOUNDS,869.
MLA	Xu, Chang,et al."VOOH nanosheets with enhanced capacitance as supercapacitor electrode".JOURNAL OF ALLOYS AND COMPOUNDS 869(2021).