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

*この研究の対応する著者

研究成果査読

11 被引用数 (Scopus)

抄録

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.

本文言語English
論文番号19795
ジャーナルScientific reports
6
DOI
出版ステータスPublished - 2016 1 21

ASJC Scopus subject areas

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