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Constructing Conductive Bridge Arrays between Ti3C2Tx MXene Nanosheets for High-Performance Lithium-Ion Batteries and Highly Efficient Hydrogen Evolution
Wang, Xin1; Wang, Shuguang1; Qin, Jinwen1; Xie, Xi2; Yang, Rui2; Cao, Minhua1
Corresponding AuthorQin, Jinwen(qjw@bit.edu.com) ; Cao, Minhua(caomh@bit.edu.cn)
2019-12-16
Source PublicationINORGANIC CHEMISTRY
ISSN0020-1669
Volume58Issue:24Pages:16524-16536
AbstractTi3C2Tx is a member of the MXene family with high potential for electrochemical applications, including lithium -ion batteries (LIBs) and hydrogen evolution reaction (HER). However, severe interlayer restacking not only causes a great loss of the active sites but also decreases the ionic diffusion channels, both of which significantly degrades the electrochemical performances of LIBs and HER. The common interlayer spacers could increase interlayer space but reduce the conductivity. Herein, we introduce in situ carbon nanotube (CNT) arrays between Ti3C2Tx MXene nanosheets (3D CNTs@Ti3C2Tx) as the conductive bridges for achieving a unique architecture with high conductivity, fast ion/mass transfer channels, and high exposure of the activity sites. In this architecture, 1D CNTs can not only be viewed as the interlayer spacer that prevents Ti3C2Tx MXene nanosheets from recombining but also connect with the neighbor Ti3C2Tx MXene nanosheets providing more ion/electron transport channels. Benefiting from this unique structure that could improve ion/electron transfer kinetics and capacitive contribution, 3D CNT5@Ti3C2Tx displays high specific capacity as an anode for LIBs (491 mA h g(-1) at 320 mA g(-1)). Furthermore, 3D CNTs@Ti3C2Tx. also exhibits excellent HER performance in alkaline medium (the overpotential is 93 mV at 10 mA cm(-2)) and excellent water splitting performance. This strategy that in situ construction of CNT arrays between the MXene nanosheets proves an effective method for the rational design of multifunctional energy storage/conversion materials.
Funding OrganizationNational Natural Science Foundation of China
DOI10.1021/acs.inorgchem.9b02513
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[21872008] ; National Natural Science Foundation of China[21601014]
WOS Research AreaChemistry
WOS SubjectChemistry, Inorganic & Nuclear
WOS IDWOS:000503330800023
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/136583
Collection中国科学院金属研究所
Corresponding AuthorQin, Jinwen; Cao, Minhua
Affiliation1.Beijing Inst Technol, Sch Chem & Chem Engn, Key Lab Cluster Sci, Minist Educ China, Beijing 100081, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Wang, Xin,Wang, Shuguang,Qin, Jinwen,et al. Constructing Conductive Bridge Arrays between Ti3C2Tx MXene Nanosheets for High-Performance Lithium-Ion Batteries and Highly Efficient Hydrogen Evolution[J]. INORGANIC CHEMISTRY,2019,58(24):16524-16536.
APA Wang, Xin,Wang, Shuguang,Qin, Jinwen,Xie, Xi,Yang, Rui,&Cao, Minhua.(2019).Constructing Conductive Bridge Arrays between Ti3C2Tx MXene Nanosheets for High-Performance Lithium-Ion Batteries and Highly Efficient Hydrogen Evolution.INORGANIC CHEMISTRY,58(24),16524-16536.
MLA Wang, Xin,et al."Constructing Conductive Bridge Arrays between Ti3C2Tx MXene Nanosheets for High-Performance Lithium-Ion Batteries and Highly Efficient Hydrogen Evolution".INORGANIC CHEMISTRY 58.24(2019):16524-16536.
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