Lifetime of Ionic Vacancy Created in Redox Electrode Reaction Measured by Cyclotron MHD Electrode

Atsushi Sugiyama, Ryoichi Morimoto, Tetsuya Osaka, Iwao Mogi, Miki Asanuma, Makoto Miura, Yoshinobu Oshikiri, Yusuke Yamauchi, Ryoichi Aogaki

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The lifetimes of ionic vacancies created in ferricyanide-ferrocyanide redox reaction have been first measured by means of cyclotron magnetohydrodynamic electrode, which is composed of coaxial cylinders partly exposed as electrodes and placed vertically in an electrolytic solution under a vertical magnetic field, so that induced Lorentz force makes ionic vacancies circulate together with the solution along the circumferences. At low magnetic fields, due to low velocities, ionic vacancies once created become extinct on the way of returning, whereas at high magnetic fields, in enhanced velocities, they can come back to their initial birthplaces. Detecting the difference between these two states, we can measure the lifetime of ionic vacancy. As a result, the lifetimes of ionic vacancies created in the oxidation and reduction are the same, and the intrinsic lifetime is 1.25 s, and the formation time of nanobubble from the collision of ionic vacancies is 6.5 ms.

Original languageEnglish
Article number19795
JournalScientific Reports
Volume6
DOIs
Publication statusPublished - 2016 Jan 21

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cyclotrons
life (durability)
electrodes
magnetic fields
circumferences
Lorentz force
magnetohydrodynamics
low speed
oxidation
collisions

ASJC Scopus subject areas

  • General

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Lifetime of Ionic Vacancy Created in Redox Electrode Reaction Measured by Cyclotron MHD Electrode. / Sugiyama, Atsushi; Morimoto, Ryoichi; Osaka, Tetsuya; Mogi, Iwao; Asanuma, Miki; Miura, Makoto; Oshikiri, Yoshinobu; Yamauchi, Yusuke; Aogaki, Ryoichi.

In: Scientific Reports, Vol. 6, 19795, 21.01.2016.

Research output: Contribution to journalArticle

Sugiyama, A, Morimoto, R, Osaka, T, Mogi, I, Asanuma, M, Miura, M, Oshikiri, Y, Yamauchi, Y & Aogaki, R 2016, 'Lifetime of Ionic Vacancy Created in Redox Electrode Reaction Measured by Cyclotron MHD Electrode', Scientific Reports, vol. 6, 19795. https://doi.org/10.1038/srep19795
Sugiyama, Atsushi ; Morimoto, Ryoichi ; Osaka, Tetsuya ; Mogi, Iwao ; Asanuma, Miki ; Miura, Makoto ; Oshikiri, Yoshinobu ; Yamauchi, Yusuke ; Aogaki, Ryoichi. / Lifetime of Ionic Vacancy Created in Redox Electrode Reaction Measured by Cyclotron MHD Electrode. In: Scientific Reports. 2016 ; Vol. 6.
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