Manipulation of magnetic ionic liquid droplets and their application in energy harvesting | |
Cheng, Lin1; Zhang XP(张晓萍)1; Deng YQ(邓友全)2; He, Xiaodong1; Zhang XP(张晓萍); Qiang, Wenbin1; Wu, Jianbing1; Shao, Qunfeng1; Cao, Pengfei1 | |
刊名 | Journal of Physics D: Applied Physics |
2017 | |
卷号 | 50期号:46页码:465002(1-8) |
关键词 | Microfluidic Hysteresis Phenomenon Energy Harvest Magnetic Ionic Liquids |
ISSN号 | 0022-3727 |
DOI | 10.1088/1361-6463/aa8c44 |
英文摘要 | Controlling discrete fluid droplets using magnetic fields on a hydrophobic surface offers new opportunities in microfluidics. Manipulation of two pure magnetic ionic liquids (MILs) [Emim][FeCl4] and [Bmim][FeCl4] was investigated on a hydrophobic surface under the influence of an external magnetic field. The effects of increasing and decreasing magnetic field strength on the shape of the MIL droplets were first studied at three different temperatures. Both MILs showed good robustness to temperature variations. Moreover, the hysteresis phenomena of height and contact line diameter were observed for both MIL droplets with different volumes. Next, the movement of the MIL droplets under the actuation of a horizontal moving magnet was investigated. It was found that the maximum attainable speed increased linearly with the droplet volume, and it was up to 22 mm s−1 for a 10 µl [Emim][FeCl4] droplet when the surface magnetic field strength was 400 mT. Finally, a electrostatic energy harvester using conductive MIL droplets rolling across a charged electret film was studied. An average output power of 78 nW was obtained with a 20 µl droplet. The manipulation of individual real pure MIL droplets without adding or dispersing magnetic particles was persistent and neither evaporation nor phase separation took place. |
学科主题 | 物理化学与绿色催化 |
资助项目 | 绿色催化研究组 |
语种 | 英语 |
WOS记录号 | WOS:000413780800001 |
资助机构 | the National Key Research and Development Program of China (2017YFA0403101);the Fundamental Research Funds for the Central Universities (lzujbky-2015-306;lzujbky-2016-141;lzujbky-2016-143;lzujbky-2016-138) |
内容类型 | 期刊论文 |
源URL | [http://ir.licp.ac.cn/handle/362003/22791] |
专题 | 兰州化学物理研究所_OSSO国家重点实验室 兰州化学物理研究所_绿色化学研究发展中心 |
通讯作者 | Zhang XP(张晓萍) |
作者单位 | 1.Lanzhou Univ, Sch Informat Sci & Engn, 222 Tianshui South Rd, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, Ctr Green Chem & Catalysis, 18 Tianshui Middle Rd, Lanzhou 730000, Gansu, Peoples R China |
推荐引用方式 GB/T 7714 | Cheng, Lin,Zhang XP,Deng YQ,et al. Manipulation of magnetic ionic liquid droplets and their application in energy harvesting[J]. Journal of Physics D: Applied Physics,2017,50(46):465002(1-8). |
APA | Cheng, Lin.,Zhang XP.,Deng YQ.,He, Xiaodong.,张晓萍.,...&Cao, Pengfei.(2017).Manipulation of magnetic ionic liquid droplets and their application in energy harvesting.Journal of Physics D: Applied Physics,50(46),465002(1-8). |
MLA | Cheng, Lin,et al."Manipulation of magnetic ionic liquid droplets and their application in energy harvesting".Journal of Physics D: Applied Physics 50.46(2017):465002(1-8). |
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