Crystalline Co2V3O8@Amorphous Co−B Core-Shell Nano-Microsphere: Tunable Shell Layer Thickness, Faradaic Pseudocapacitive Mechanism, and Electrochemical Capacitor Applications

doi:10.1002/batt.202100022

	Crystalline Co2V3O8@Amorphous Co−B Core-Shell Nano-Microsphere: Tunable Shell Layer Thickness, Faradaic Pseudocapacitive Mechanism, and Electrochemical Capacitor Applications
	Hou, Jing-Feng 1; Gao, Jian-Fei 1; Kong, Ling-Bin1,2
	2021-06
发表期刊	Batteries and Supercaps
卷号	4 期号:6 页码:948-959
摘要	The interface engineering of highly efficient electrode materials is of dominant importance for enhancing the electrochemical performance of advanced energy storage devices. Here, we demonstrate the construction of a novel crystalline@amorphous core-shell nanostructured with Co3V2O8 spherical particles as the cores and Co−B nanoflakes as the shells. The Co−B shell layer thickness could be tuned by changing the mass ratio of Co3V2O8 and B source. This unique structure shows intriguing synergistic properties with increased electroactive sites and also provides effective space and a short diffusion distance for faradaic reactions. The tunable amorphous layer facilitates the electrolyte diffusion while showing elastic behavior to alleviate the volume strain of Co3V2O8, and also provides a path for electron transport. The resulting Co3V2O8@Co−B under optimum conditions exhibits a high specific capacitance, remarkable rate performance, and outstanding cycling stability. Such an effective redox approach may shed substantial light on inspiring crystalline/amorphous contacts and their derivatives for energy storage and conversion devices. © 2021 Wiley-VCH GmbH
关键词	Cobalt compounds Electrolytes Electron transport properties Energy storage Nanocrystalline materials Shells (structures) Electroactive sites Electrochemical capacitor Electrochemical performance Energy storage and conversions Faradaic reactions High specific capacitances Interface engineering Synergistic properties
DOI	10.1002/batt.202100022
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Electrochemistry ; Materials Science
WOS类目	Electrochemistry ; Materials Science, Multidisciplinary
WOS记录号	WOS:000624638000001
出版者	John Wiley and Sons Inc
EI入藏号	20211010027291
EI主题词	Vanadium compounds
EI分类号	408.2 Structural Members and Shapes ; 525.7 Energy Storage ; 702 Electric Batteries and Fuel Cells ; 761 Nanotechnology ; 803 Chemical Agents and Basic Industrial Chemicals ; 804 Chemical Products Generally
来源库	WOS
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/150725
专题	材料科学与工程学院
通讯作者	Kong, Ling-Bin
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China
第一作者单位	省部共建有色金属先进加工与再利用国家重点实验室
通讯作者单位	省部共建有色金属先进加工与再利用国家重点实验室; 材料科学与工程学院
第一作者的第一单位	省部共建有色金属先进加工与再利用国家重点实验室
推荐引用方式 GB/T 7714	Hou, Jing-Feng,Gao, Jian-Fei,Kong, Ling-Bin. Crystalline Co2V3O8@Amorphous Co−B Core-Shell Nano-Microsphere: Tunable Shell Layer Thickness, Faradaic Pseudocapacitive Mechanism, and Electrochemical Capacitor Applications[J]. Batteries and Supercaps,2021,4(6):948-959.
APA	Hou, Jing-Feng,Gao, Jian-Fei,&Kong, Ling-Bin.(2021).Crystalline Co2V3O8@Amorphous Co−B Core-Shell Nano-Microsphere: Tunable Shell Layer Thickness, Faradaic Pseudocapacitive Mechanism, and Electrochemical Capacitor Applications.Batteries and Supercaps,4(6),948-959.
MLA	Hou, Jing-Feng,et al."Crystalline Co2V3O8@Amorphous Co−B Core-Shell Nano-Microsphere: Tunable Shell Layer Thickness, Faradaic Pseudocapacitive Mechanism, and Electrochemical Capacitor Applications".Batteries and Supercaps 4.6(2021):948-959.