Discontinuous streaming potential via liquid gate  

作　　者：Jian Zhang Kan Zhan Shusong Zhang Yigang Shen Yaqi Hou Jing Liu Yi Fan Yunmao Zhang Shuli Wang Yanbo Xie Xinyu Chen Xu Hou 

机构地区：[1]State Key Laboratory of Physical Chemistry of Solid Surfaces,College of Chemistry and Chemical Engineering,Xiamen University,Xiamen,361005,China [2]Institute of Artificial Intelligence,Xiamen University,Xiamen,361005,China [3]School of Physical Science and Technology,Northwestern Polytechnical University,Xi'an,710072,China [4]School of Aeronautics and Institute of Extreme Mechanics,Northwestern Polytechnical University,Xi'an,710072,China [5]Fujian Engineering Research Center for Solid-State Lighting,Department of Electronic Science,School of Electronic Science and Engineering,Xiamen University,Xiamen,361005,China [6]College of Physical Science and Technology,Xiamen University,Xiamen,361005,China [7]Office of International Cooperation and Exchange,Xiamen University,Xiamen,361005,China [8]Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province(IKKEM),Xiamen,361005,China

出　　处：《eScience》2022年第6期615-622,共8页电化学与能源科学（英文）

基　　金：National Natural Science Foundation of China(52025132,21975209,21621091,12075191);National Key R&D Program of China(2018YFA0209500);National Science Foundation of Fujian Province(2022J02059);Fundamental Research Funds for the Central Universities in China(20720220085);111 Project(B17027,B16029);Science and Technology Projects of Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province(grant no.RD2022070601).

摘　　要：Streaming potential is mainly related to electrokinetic energy conversion,which has been considered to show promising potential for advanced technologies,especially sensing.The inherent property of streaming potential is that the energy conversion process is always a continuous state.However,practical applications include many cases of discontinuous states,such as nonlinear sensing.Here,we report a discontinuous streaming potential electrokinetic energy conversion fluid system.Experiments and theoretical calculations reveal that this system exhibits a discontinuous electrokinetic effect and provides a gating liquid slip in micropores,offering the advantages of gating liquid charge coupling and interfacial drag reduction.Moreover,the system is demonstrated in a wearable fall-down alert application.We expect this liquid gating energy conversion system to open up a platform for the design and application of autonomous health monitoring devices,seismic sea wave warning systems,and beyond.

关 键 词：Liquid gating technology Electrokinetic effect Membrane science Discontinuous behavior Streaming potential 

分 类 号：O646[理学—物理化学]