A micropump driven by electrochemically produced short-lived bubbles

27th Micromechanics and Microsystems Europe Workshop

物理学;力学

Uvarov, I.V.^1 ; Lemekhov, S.S.^1 ; Melenev, A.E.^1 ; Svetovoy, V.B.^1,2

Yaroslavl Branch of the Institute of Physics and Technology RAS, Universitetskaya 21, Yaroslavl

150007, Russia^1

MESA+ Institute for Nanotechnology, University of Twente, PO 217, Enschede

7500 AE, Netherlands^2

关键词: Long time stabilities;    Metallic electrodes;    Micro pump;    Microbubbles;    Termination time;    Voltage polarity;    Water electrolysis;    Working chambers;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/757/1/012008/pdf
DOI  :  10.1088/1742-6596/757/1/012008

学科分类：力学，机械学

来源: IOP

【 摘 要 】

A new working principle for electrochemical micropump with the gas termination time as short as 100 microseconds is presented. It is based on water electrolysis with a fast change of voltage polarity. A simple electrochemical micropump is designed to demonstrate this pumping principle. The device consists of a working chamber with metallic electrodes, inlet and outlet diffusers, and channels for liquid. The chamber and the channels are filled with the electrolyte that plays a role of the pumped liquid. The pump was tested in different regimes. One of these regimes related to formation and termination of short-lived microbubbles is especially promising. Long time stability of the electrodes is demonstrated.