Influence of Magnetic Fields on the Voltammetric Response of Microelectrodes in Highly Concentrated Organic Redox Solutions

1 June 1995

journal article
Published by The Electrochemical Society in Journal of the Electrochemical Society

Vol. 142 (6) , L90-L92
https://doi.org/10.1149/1.2044255

Abstract

The voltammetric response of Au and Pt microdisk electrodes (6.4, 12.5, and 25 μm) in concentrated solutions of organic redox species (nitrobenzene, acetophenone, and benzophenone) has been measured as a function of the orientation and magnitude of an externally applied magnetic field (0–1 Tesla). A magnetic field effect on voltammetric currents is observed for redox concentrations greater than ∼0.01 M, and is a strong function of the orientation of the field. Large enhancements (+100%) or diminishments (−15%) of limiting currents can be induced by application of the magnetic field. The observed phenomena are discussed in terms of magnetic field‐induced transport of electrogenerated products.

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