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

Abstract

The voltammetric response of Au and Pt microdisk electrodes (6.4, 12.5, and 25 micrometers) 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 approx. 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. jg

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Document Details

Document Type
Technical Report
Publication Date
Mar 31, 1995
Accession Number
ADA294326

Entities

People

  • Henry S. White
  • Jeonghee Lee
  • Laurie D. Hardy
  • Xiaoping Gao

Organizations

  • University of Utah

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Cells
  • Charge Carriers
  • Chemistry
  • Electrochemical Cells
  • Electrochemistry
  • Electrodes
  • Flow
  • Fluid Flow
  • Gravitational Fields
  • Ketones
  • Magnetic Fields
  • Magnetic Forces
  • Migration
  • Military Research
  • Nitrobenzenes
  • Steady State

Readers

  • Electrochemical Surface Science
  • Organic Chemistry
  • Plasma Physics / Magnetohydrodynamics