Investigations of the magnetic field effect on electrochemical processes

doi:10.1016/j.jmmm.2003.12.856

Journal of Magnetism and Magnetic Materials

Volumes 272–276, Part 3, May 2004, Pages 2448-2449

https://doi.org/10.1016/j.jmmm.2003.12.856 Get rights and content

Abstract

A brief review of the history of the magnetic field effect on the electrode potential is considered. No explanation of this effect was suggested since 19th century, probably because of low reproducibility of the results. Some years ago we started new investigations. We considered some experiments and discussed their results.

References (15)

N.S Perov et al.
Sensors Actuat.
(2000)
I Yamamoto et al.
Physica B
(1996)
J Remsen
Lumiere. Electr.
(1888)
A Gross
Vien. Ber.
(1885)
S Nichols et al.
Am. J. Sci.
(1887)
R Andrews
Proc. R. Soc.
(1890)
T Rowland et al.
Philos. Mag.
(1893)

There are more references available in the full text version of this article.

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Investigations of the magnetic field effect on electrochemical processes

Abstract

Sensors Actuat.

Physica B

Lumiere. Electr.

Vien. Ber.

Am. J. Sci.

Proc. R. Soc.

Philos. Mag.