Electrochemical pump consisting of Cu2+-poly(acrylic acid) gel

K. Takada, N. Yamamura, A. Hayashi, T. Yasui, A. Yuchi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An electrochemical pump consisting of poly(acrylic acid) incorporating Cu2+ ion was developed. The pump discharges and charges liquid at the level of a few hundred of picoliter per second upon expansion and contraction of the gel induced by reduction and oxidation of the copper, respectively. The pump discharged ca. 5 μl of water at -1.3 V vs. Ag/AgCl for 3 h, whereas charged ca. 1.2 μl at +1.0 V for 3 h. At constant currents of -4.4 and +4.4 μA cm-2, the volumes of water discharged and charged were found to be nearly proportional to the charge at ca. 0.10 cm3 C-1 for both reduction and oxidation processes, except for an initial stage of the electrolysis. Further, upon repeated galvanostatic electrolyses, the same volume-charge slopes were obtained. These results indicate a reversibility and reproducibility of the pump.

Original languageEnglish
Title of host publicationChemical Sensors 10 -and- MEMS/NEMS 10
Pages363-368
Number of pages6
Edition12
DOIs
Publication statusPublished - Dec 1 2012
Externally publishedYes
EventSymposia on Chemical Sensors 10 - Chemical and Biological Sensors and Analytical Systems and Microfabricated and Nanofabricated Systems for MEMS/NEMS 10 - 222nd ECS Meeting/PRiME 2012 - Honolulu, HI, United States
Duration: Oct 7 2012Oct 12 2012

Publication series

NameECS Transactions
Number12
Volume50
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

OtherSymposia on Chemical Sensors 10 - Chemical and Biological Sensors and Analytical Systems and Microfabricated and Nanofabricated Systems for MEMS/NEMS 10 - 222nd ECS Meeting/PRiME 2012
CountryUnited States
CityHonolulu, HI
Period10/7/1210/12/12

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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  • Cite this

    Takada, K., Yamamura, N., Hayashi, A., Yasui, T., & Yuchi, A. (2012). Electrochemical pump consisting of Cu2+-poly(acrylic acid) gel. In Chemical Sensors 10 -and- MEMS/NEMS 10 (12 ed., pp. 363-368). (ECS Transactions; Vol. 50, No. 12). https://doi.org/10.1149/05012.0363ecst