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A space-confined strategy toward large-area two-dimensional crystals of ionic liquid
Lu, Yumiao1; Chen, Wei1; Wang, Yanlei1; Huo, Feng1; Zhang, Lan1; He, Hongyan1; Zhang, Suojiang1,2
2020-01-28
Source PublicationPHYSICAL CHEMISTRY CHEMICAL PHYSICS
ISSN1463-9076
Volume22Issue:4Pages:1820-1825
Abstract

Understanding and manipulating nano-confined ionic liquids (ILs) has tremendous implications in nanotechnology and chemical engineering. Here, a peculiar growth phenomenon of a nano-confined [Bmim][NTFI] ionic liquid is revealed by utilizing two-dimensional channels in mica. The intercalated ILs underwent liquid-solid transition and self-assembled into a self-similar two-dimensional crystal in an epitaxial relation with the confining material. The terraced IL crystals, ranging from monolayer to bilayer to several dozen layers, are characterized by unexpectedly large areas extending to mm-scale and enhanced thermal stability with a melting temperature 73 K higher than that of the corresponding bulk IL. The notable asymmetric feature of the layered crystals hints at anisotropic growth under confinement, which produces a well-defined hexagonal geometric shape. Finally, a molecular scale growth mechanism of ordered ILs is qualitatively interpreted by a birth-and-spread model. Our findings have enabled new research on nanoconfined ILs and opened up an avenue to tailoring the structure of ILs for their applications under confinement.

DOI10.1039/c9cp04467a
Language英语
WOS KeywordTransition ; Mechanism ; Dynamics
Funding ProjectNational Key Research and Development Program of China[2018YFB0604903] ; National Science Fund for Excellent Young Scholars[21922813] ; National Natural Science Foundation of China[21908221] ; National Natural Science Foundation of China[21890762] ; National Natural Science Foundation of China[21776278] ; Fund of State Key Laboratory of Multiphase complex systems[MPCS-2019-A-08] ; Fund of Dalian National Laboratory for Clean Energy of the CAS[DNL 180202]
WOS Research AreaChemistry ; Physics
WOS SubjectChemistry, Physical ; Physics, Atomic, Molecular & Chemical
Funding OrganizationNational Key Research and Development Program of China ; National Science Fund for Excellent Young Scholars ; National Natural Science Foundation of China ; Fund of State Key Laboratory of Multiphase complex systems ; Fund of Dalian National Laboratory for Clean Energy of the CAS
WOS IDWOS:000510729400079
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/39202
Collection中国科学院过程工程研究所
Corresponding AuthorHe, Hongyan; Zhang, Suojiang
Affiliation1.Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, State Key Lab Multiphase Complex Syst, CAS Key Lab Green Proc & Engn,Inst Proc Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Lu, Yumiao,Chen, Wei,Wang, Yanlei,et al. A space-confined strategy toward large-area two-dimensional crystals of ionic liquid[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2020,22(4):1820-1825.
APA Lu, Yumiao.,Chen, Wei.,Wang, Yanlei.,Huo, Feng.,Zhang, Lan.,...&Zhang, Suojiang.(2020).A space-confined strategy toward large-area two-dimensional crystals of ionic liquid.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,22(4),1820-1825.
MLA Lu, Yumiao,et al."A space-confined strategy toward large-area two-dimensional crystals of ionic liquid".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 22.4(2020):1820-1825.
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