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Cold pressing-built microreactors to thermally manipulate microstructure of MXene film as an anode for high-performance lithium-ion batteries
Cui, Yu1; Xie, Xi2; Yang, Rui2; Qin, Jinwen1; Zheng, Lirong3; Cao, Minhua1
Corresponding AuthorQin, Jinwen() ; Cao, Minhua(caomh@bit.edu.cn)
2019-05-10
Source PublicationELECTROCHIMICA ACTA
ISSN0013-4686
Volume305Pages:11-23
AbstractIn order to fully excavate Ti3C2Tx's electrochemical energy storage capability, a combination of cold pressing and annealing treatment is developed to fabricate free-standing Ti3C2Tx MXene films featuring well-defined film structure, planar macropores, in-plane defects and expanded interlayer spacing. The rational construction of microreactors between Ti3C2Tx nanosheets by cold pressing can assist the formation of the planar macropores and in-plane defects of Ti3C2Tx nanosheets under the annealing conditions, whereas the annealing process could regulate the functional groups of Ti3C2Tx nanosheets to significantly expand their interlayer spacing. These structural advantages not only can prevent self-restacking of Ti3C2Tx nanosheets, but also can increase the ion and electrolyte diffusion as well as the utilization of electrochemically active sites. The as-prepared PF-Ti3C2Tx-500, pre-pressed at 6 MPa followed by an annealing treatment at 500 degrees C in H-2/Ar, exhibits excellent characteristics as the lithium storage anode, such as an enhanced initial Coulombic efficiency (CE) of 77.3%, a high areal capacity (2.22 mA h cm(-2) at 7.52 mg cm(-2) for 500 cycles), and stable long cycling performance. This work demonstrates the important role of microstructure manipulation of Ti3C2Tx MXene on their electrochemical performance and can guide future work on designing high-performance MXene-based materials for energy storage applications. (C) 2019 Elsevier Ltd. All rights reserved.
KeywordMXene Microreactor Free-standing film Energy storage Structural engineering
Funding OrganizationNational Natural Science Foundation of China ; 111 Project
DOI10.1016/j.electacta.2019.02.085
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[21872008] ; National Natural Science Foundation of China[21471016] ; National Natural Science Foundation of China[21271023] ; 111 Project[B07012]
WOS Research AreaElectrochemistry
WOS SubjectElectrochemistry
WOS IDWOS:000462774000002
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/132638
Collection中国科学院金属研究所
Corresponding AuthorQin, Jinwen; Cao, Minhua
Affiliation1.Beijing Inst Technol, Key Lab Cluster Sci, Beijing Key Lab Photoelect Electrophoton Convers, Minist Educ China,Sch Chem & Chem Engn, Beijing 100081, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
3.Chinese Acad Sci, Beijing Synchrotron Radiat Lab, Inst High Energy Phys, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Cui, Yu,Xie, Xi,Yang, Rui,et al. Cold pressing-built microreactors to thermally manipulate microstructure of MXene film as an anode for high-performance lithium-ion batteries[J]. ELECTROCHIMICA ACTA,2019,305:11-23.
APA Cui, Yu,Xie, Xi,Yang, Rui,Qin, Jinwen,Zheng, Lirong,&Cao, Minhua.(2019).Cold pressing-built microreactors to thermally manipulate microstructure of MXene film as an anode for high-performance lithium-ion batteries.ELECTROCHIMICA ACTA,305,11-23.
MLA Cui, Yu,et al."Cold pressing-built microreactors to thermally manipulate microstructure of MXene film as an anode for high-performance lithium-ion batteries".ELECTROCHIMICA ACTA 305(2019):11-23.
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