The Behavior of Microdisk and Microring Electrodes. The Chronoamperometric Response at Microdisk and Microring Electrodes

Abstract

We report the theoretical chronoamperometric response for a ring electrode of finite size, and compare the experimental response to that of a disk electrode. As expected, the response of the ring electrode approaches mass transport conditions close to those for the final steady state at times which are short compared to those at which the steady state is reached for disks of similar radii. The theoretical analysis is based on the properties of discontinuous integrals of Bessel functions which give exact solutions to diffusion problems with discontinuous boundary conditions in the circular cylindrical coordinate system. The solutions used were 1, 5, and 10mM Ru(III) (NH3)6+++ in 0.1M Potassium Chloride and 1mM Fe(II)(CN)6-4 in 0.1M Potassium Nitrate. Keywords: Cations, Rubidium compounds, Ammonia, Iron compounds, Cyanide, Anions, Electrochemistry.

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Document Details

Document Type
Technical Report
Publication Date
Jul 15, 1988
Accession Number
ADA200384

Entities

People

  • J. W. Pons
  • L. J. Li
  • L. M. Abrantes
  • M. Fleischmann
  • M. Hawkins
  • Stanley Pons

Organizations

  • University of Utah

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Bessel Functions
  • Chemical Engineering
  • Chemical Synthesis
  • Chemistry
  • Coefficients
  • Cyanides
  • Diffusion Coefficient
  • Electrochemistry
  • Electrodes
  • Microelectrodes
  • Military Research
  • Steady State
  • Two Dimensional
  • United States
  • Universities

Fields of Study

  • Chemistry

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Electrochemical Surface Science
  • Structural Dynamics.