| Electrocapillarity-Induced Hurricane-in-a-Tube Enables the Generation and Patterning of Liquid Metal Droplets | |
Song, Chunlei1,2; Tao XZ(陶贤赞)3,4; Chen, Yicheng5; Mao, Kaihao2; Tao, Ye2; Ge, Zhenyou1,2; Wen, Hongyan2; Chen GF(陈高峰)3,4 ; Li, Biao5; Xue, Rui2; Jiang XK(蒋玺恺)3,4; Zheng X(郑旭)3,4; Ren, Yukun1,2
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| Corresponding Author | Jiang, Xikai([email protected]) ; Zheng, Xu([email protected]) ; Ren, Yukun([email protected]) |
| Source Publication | ADVANCED FUNCTIONAL MATERIALS
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| 2024-08-02 | |
| Pages | 13 |
| ISSN | 1616-301X |
| Abstract | Room-temperature liquid metal droplets (LMDs) are a promising material for various applications in soft robotics, active droplets, and biomedical devices. However, controllable and high-throughput production of LMDs remains challenging due to their high surface tension and density. Here, a novel strategy is presented to produce LMDs by combining electric field-induced electrocapillary flow with an external flow field. The basic mechanism is that the electrocapillary flow induced at the LMD/electrolyte interface forms a vortex ring in the electrolyte, creating a hurricane-like effect in the tube, which in turn causes the liquid metal to deform and eventually pinch off into small droplets. It is demonstrated that droplet size and generation frequency can be controlled precisely by adjusting the applied electric current, flow rate, and surfactant concentration, establishing a relationship between radius and experimental parameters through dimensionless analysis. More importantly, this strategy can handle pendant droplets and facilitate programmable droplet patterning. Leveraging established relationships, flexible control over droplet size and spacing during patterning is attained. Furthermore, an iontronic pressure-sensitive device based on LMDs and hydrogel is developed to showcase the versatility of the approach. This technique opens up new opportunities for fabricating soft circuits, composite materials, and other functional devices with LMDs. A novel method for producing room-temperature liquid metal droplets in both horizontal and vertical directions is introduced, utilizing the hurricane-in-a-tube effect formed by electric field-induced electrocapillary flow, combined with an external flow field. This technique is demonstrated through programmable droplet patterning and the development of an iontronic pressure-sensitive device, highlighting its potential for creating soft circuits and composite materials. image |
| Keyword | droplet patterning electrocapillarity interfacial tension iontronic sensor liquid metal droplet |
| DOI | 10.1002/adfm.202409341 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001282324100001 |
| WOS Keyword | MICROFLUIDICS |
| WOS Research Area | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS Subject | Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| Funding Project | National Natural Science Foundation of China[12072096] ; National Natural Science Foundation of China[12072350] ; Interdisciplinary Research Foundation of HIT[IR2021229] ; Chinese Academy of Sciences[025GJHZ2022023MI] ; National Key Research and Development Program of China[2022YFF0503504] |
| Funding Organization | National Natural Science Foundation of China ; Interdisciplinary Research Foundation of HIT ; Chinese Academy of Sciences ; National Key Research and Development Program of China |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Jiang, Xikai ; Zheng, Xu ; Ren, Yukun |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/96224 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.Harbin Inst Technol, State Key Lab Robot & Syst, Harbin 150001, Peoples R China; 2.Harbin Inst Technol, Sch Mechatron Engn, Harbin 150001, Peoples R China; 3.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China; 4.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 5.Harbin Inst Technol, Sch Energy Sci & Engn, Harbin 150001, Peoples R China |
| Recommended Citation GB/T 7714 | Song, Chunlei,Tao XZ,Chen, Yicheng,et al. Electrocapillarity-Induced Hurricane-in-a-Tube Enables the Generation and Patterning of Liquid Metal Droplets[J]. ADVANCED FUNCTIONAL MATERIALS,2024:13.Rp_Au:Jiang, Xikai, Zheng, Xu, Ren, Yukun |
| APA | Song, Chunlei.,陶贤赞.,Chen, Yicheng.,Mao, Kaihao.,Tao, Ye.,...&Ren, Yukun.(2024).Electrocapillarity-Induced Hurricane-in-a-Tube Enables the Generation and Patterning of Liquid Metal Droplets.ADVANCED FUNCTIONAL MATERIALS,13. |
| MLA | Song, Chunlei,et al."Electrocapillarity-Induced Hurricane-in-a-Tube Enables the Generation and Patterning of Liquid Metal Droplets".ADVANCED FUNCTIONAL MATERIALS (2024):13. |
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