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In Situ Observation of Cu2+ Concentration Profile During Cu Dissolution in Magnetic Field

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Title: In Situ Observation of Cu2+ Concentration Profile During Cu Dissolution in Magnetic Field
Authors: Kamesui, Go Browse this author
Nishikawa, Kei Browse this author
Matsushima, Hisayoshi Browse this author →KAKEN DB
Ueda, Mikito Browse this author →KAKEN DB
Keywords: Anode
Interference microscope
magnetic field
diffusion layer
MHD convection
Issue Date: 1-Mar-2021
Publisher: The Electrochemical Society (ECS)
Journal Title: Journal of the electrochemical society
Volume: 168
Issue: 3
Start Page: 031507
Publisher DOI: 10.1149/1945-7111/abeb2a
Abstract: It is important to understand and control corrosion in very small parts. For this purpose, in situ observation of corrosion reactions is necessary. Magnetic fields offer a new way of influencing corrosion reactions. We have investigated the dissolution of a Cu anode in a magnetic field using a holographic laser interferometric microscope. The microscope enables us to quantify the growth of the diffusion layer and the variation in Cu2+ concentration in the vicinity of the electrode. By sandwiching the anode between two doughnut-shaped neodymium magnets, the increase in the surface concentration caused by dissolution is remarkably suppressed, whereas the thickness of the diffusion layer is barely affected. The present results support the hypothesis that mass transport in enhanced in the magnetic field.
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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