Spontaneous Motion and Rotation of Acid Droplets on the Surface of a Liquid Metal

doi:10.1021/acs.langmuir.1c00455

IMECH-IR > 非线性力学国家重点实验室

	Spontaneous Motion and Rotation of Acid Droplets on the Surface of a Liquid Metal
	Wang ZL(王占龙)1,2; Wang XH(王晓荷)1,2; Miao Q(苗青)1,2; Gao FF(高斐斐)1,2 ; Zhao YP(赵亚溥)1,2
通讯作者	Zhao, Ya-Pu(yzhao@imech.ac.cn)
发表期刊	LANGMUIR
	2021-04-13
卷号	37 期号:14 页码:4370-4379
ISSN	0743-7463
摘要	Self-propulsion of droplets is of great significance in many fields. The spontaneous horizontal motion and self-jumping of droplets have been well realized in various ways. However, there is still a lack of an effective method to enable a droplet to rotate spontaneously and steadily. In this paper, by employing an acid droplet and a liquid metal, the spontaneous and steady rotation of droplets is achieved. For an acid droplet, it may spontaneously move when it is deposited on the surface of the liquid metal. By adjusting experimental parameters to the proper range, the self-rotation of droplet happens. This phenomenon originates from the fluctuation of the droplet boundary and the collective movement of bubbles that are generated by the chemical reactions between the acid droplet and liquid metal. This rotation has a simpler implementation method and more steady rotation state. Its angular velocity is much higher than that driven by other mechanisms. Moreover, the movements of acid droplets on the liquid metal are classified according to experimental conditions. The internal flow fields, the movements and distribution of bubbles, and the fluctuation of the droplet boundary are also explored and discussed. The theoretical model describing the rotational droplet is given. Our work may deepen the understanding of the physical system transition affected by chemical reactions and provide a new way for the design of potential applications, e.g., micro- and nanodevices.
DOI	10.1021/acs.langmuir.1c00455
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000640891400036
关键词[WOS]	WATER ; DROPS ; INTERFACE ; TRANSPORT
WOS研究方向	Chemistry ; Materials Science
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Physical ; Materials Science, Multidisciplinary
资助项目	National Natural Science Foundation of China (NSFC)[11988102] ; NSFC[12032019] ; NSFC[51861145314] ; NSFC[11872363] ; Chinese Academy of Sciences (CAS) Key Research Program of Frontier Sciences[QYZDJ-SSW-JSC019] ; CAS Strategic Priority Research Program[XDB22040401]
项目资助者	National Natural Science Foundation of China (NSFC) ; NSFC ; Chinese Academy of Sciences (CAS) Key Research Program of Frontier Sciences ; CAS Strategic Priority Research Program
论文分区	二类
力学所作者排名	1
RpAuthor	Zhao, Ya-Pu
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/86582
专题	非线性力学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang ZL,Wang XH,Miao Q,et al. Spontaneous Motion and Rotation of Acid Droplets on the Surface of a Liquid Metal[J]. LANGMUIR,2021,37,14,:4370-4379.
APA	王占龙,王晓荷,苗青,高斐斐,&赵亚溥.(2021).Spontaneous Motion and Rotation of Acid Droplets on the Surface of a Liquid Metal.LANGMUIR,37(14),4370-4379.
MLA	王占龙,et al."Spontaneous Motion and Rotation of Acid Droplets on the Surface of a Liquid Metal".LANGMUIR 37.14(2021):4370-4379.

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