磁界印加による電気化学反応の促進・制御

概要

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Systematic experiments were performed to investigate the influence of magnetic fields on the mass transfer rate in the electroreduction of Fe(CN)_6^<3-> around a cylindrical cathode under the diffusion-controlled condition. The following experimental parameters were taken into account: geometrically, the diameter, the aspect ratio, and the relative orientation of the cathode to the applied magnetic field; magnetically, the static, pulsating, and switching magnetic flux densities and related periodic parameters such as the frequency. The experimental results showed that the mass transfer is significantly enhanced by application of magnetic fields. The introduction of a new term, the "magneto-diffusion factor," elucidated from the governing equations, was shown to be effective for correlating the mass transfer coefficients. In respective cases with periodically changing magnetic fields and with a spherical cathode, the mass transfer coefficients obtained were well correlated with the magneto-diffusion factor.
社団法人日本磁気学会の論文
2001-12-01