FeCo2S4@Ni@graphene Nanocomposites with Rich Defects Induced by Heterointerface Engineering for High-Performance Supercapacitors

doi:10.1021/acsaem.0c03062

IR > 理学院

	FeCo2S4@Ni@graphene Nanocomposites with Rich Defects Induced by Heterointerface Engineering for High-Performance Supercapacitors
	Zheng, Xuan 1; Jiang, Jinlong1,2,3 ; Bi, Tiantian 1; Jin, Fangzhou 1; Li, Mingjie 1
	2021-04-26
发表期刊	ACS APPLIED ENERGY MATERIALS
ISSN	2574-0962
卷号	4 期号:4 页码:3288-3296
摘要	Rational designing advanced materials with multicomponents and multiscale nanostructures is an important pathway to promote the rapid development and practical application of high-performance supercapacitors. Herein, FeCo2S4@Ni@graphene nanocomposites are prepared through electroless deposition-hydrothermal two-step method. In this hybrid structure, the metal nickel as a conductive bridge significantly enhances the charge transport and the structural stability between FeCo2S4 and graphene by encouraging the heterogeneous nucleation of FeCo2S4 on the active Ni@graphene. More importantly, the rich defects are induced into FeCo2S4@Ni@graphene by the interface engineering due to the lattice mismatch at the interface between Ni and FeCo2S4 and partial substitution of Ni for Co or Fe. These defects can provide additional faradic redox reactions and abundant active sites. Benefiting from the synergies of above advantages, the optimized FeCo2S4@Ni@graphene shows a specific capacity of 390.0 mAh g(-1) at 1 A g(-1). Additionally, the asymmetric supercapacitor based on FeCo2S4@Ni@ graphene delivers a high energy density of 65.8 Wh kg(-1) at 849 W kg(-1), as well as capacitance retention of 89.2% after 6000 cycles at 20 A g(-1). This work proposes an effective strategy, which is to regulate the defects in transition-metal compounds through heterointerface engineering to prepare advanced energy-storage materials.
关键词	interface engineering defect FeCo2S4 graphene supercapacitor
DOI	10.1021/acsaem.0c03062
收录类别	SCIE ; SCOPUS ; EI
语种	英语
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
WOS类目	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS记录号	WOS:000644737800034
出版者	AMER CHEMICAL SOC
EI入藏号	20211810292591
EI主题词	Sulfur compounds
EI分类号	525.7 Energy Storage - 548.1 Nickel - 761 Nanotechnology - 802.2 Chemical Reactions - 804 Chemical Products Generally - 804.1 Organic Compounds - 933 Solid State Physics - 951 Materials Science
来源库	WOS
引用统计	被引频次：22[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/148238
专题	理学院
通讯作者	Jiang, Jinlong
作者单位	1.Lanzhou Univ Technol, Sch Sci, Dept Phys, Lanzhou 730050, Peoples R China; 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China; 3.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China
第一作者单位	理学院
通讯作者单位	理学院; 省部共建有色金属先进加工与再利用国家重点实验室
第一作者的第一单位	理学院
推荐引用方式 GB/T 7714	Zheng, Xuan,Jiang, Jinlong,Bi, Tiantian,et al. FeCo2S4@Ni@graphene Nanocomposites with Rich Defects Induced by Heterointerface Engineering for High-Performance Supercapacitors[J]. ACS APPLIED ENERGY MATERIALS,2021,4(4):3288-3296.
APA	Zheng, Xuan,Jiang, Jinlong,Bi, Tiantian,Jin, Fangzhou,&Li, Mingjie.(2021).FeCo2S4@Ni@graphene Nanocomposites with Rich Defects Induced by Heterointerface Engineering for High-Performance Supercapacitors.ACS APPLIED ENERGY MATERIALS,4(4),3288-3296.
MLA	Zheng, Xuan,et al."FeCo2S4@Ni@graphene Nanocomposites with Rich Defects Induced by Heterointerface Engineering for High-Performance Supercapacitors".ACS APPLIED ENERGY MATERIALS 4.4(2021):3288-3296.