Manipulation of Contact Angle Hysteresis at Electrified Ionic Liquid-Solid Interfaces

doi:10.1103/PhysRevLett.132.044002

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	Manipulation of Contact Angle Hysteresis at Electrified Ionic Liquid-Solid Interfaces
	Nie, Pengcheng 1,2; Jiang, Xikai 2; Zheng, Xu 2; Guan, Dongshi 1,2
刊名	PHYSICAL REVIEW LETTERS
	2024-01-25
卷号	132 期号:4 页码:6
ISSN号	0031-9007
DOI	10.1103/PhysRevLett.132.044002
通讯作者	Guan, Dongshi(dsguan@imech.ac.cn)
英文摘要	Room-temperature ionic liquids (RTILs) are intriguing fluids that have drawn much attention in applications ranging from tribology and catalysis to energy storage. With strong electrostatic interaction between ions, their interfacial behaviors can be modulated by controlling energetics of the electrified interface. In this work, we report atomic-force-microscope measurements of contact angle hysteresis (CAH) of a circular contact line formed on a micron-sized fiber, which is coated with a thin layer of conductive film and intersects an RTIL-air interface. The measured CAH shows a distinct change by increasing the voltage U applied on the fiber surface. Molecular dynamics simulations were performed to illustrate variations of the solidlike layer in the RTIL adsorbed at the electrified interface. The integrated experiments and computations demonstrate a new mechanism to manipulate the CAH by rearrangement of interfacial layers of RTILs induced by the surface energetics.
资助项目	NSFC[11972351] ; NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics[11988102] ; Chinese Academy of Sciences[025GJHZ2022023MI]
WOS关键词	PERIODIC SLAB GEOMETRIES ; ELECTROSTATICS ; SOLVENTS
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:001182014200010
资助机构	NSFC ; NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics ; Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/94911]
专题	力学研究所_非线性力学国家重点实验室
通讯作者	Guan, Dongshi
作者单位	1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Nie, Pengcheng,Jiang, Xikai,Zheng, Xu,et al. Manipulation of Contact Angle Hysteresis at Electrified Ionic Liquid-Solid Interfaces[J]. PHYSICAL REVIEW LETTERS,2024,132(4):6.
APA	Nie, Pengcheng,Jiang, Xikai,Zheng, Xu,&Guan, Dongshi.(2024).Manipulation of Contact Angle Hysteresis at Electrified Ionic Liquid-Solid Interfaces.PHYSICAL REVIEW LETTERS,132(4),6.
MLA	Nie, Pengcheng,et al."Manipulation of Contact Angle Hysteresis at Electrified Ionic Liquid-Solid Interfaces".PHYSICAL REVIEW LETTERS 132.4(2024):6.