The Reliability of Standard Rate Constants for Rapid Electrochemical Reactions.

Abstract

A method is outlined for testing the reliability of standard rate constants for rapid electrode reactions evaluated using electrochemical perturbation techniques. This entails monitoring the response of the apparent values of rate constants to systematic alterations of the double-layer structure caused by the addition of specifically adsorbed anions. These rate responses are compared with those observed at the same potential for structurally similar, yet irreversible, reactions for which reliable rate constant - potential data can be obtained using conventional d.c. methods. The procedure is applied to rate data obtained for Ru(III)/(II) ammine redox couples by comparing the measured rate increases resulting from the addition of para toluenesulfonate anions with the corresponding rate increases seen for the irreversible reduction of Co(III) ammines.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1984
Accession Number
ADA142445

Entities

People

  • Michael J. Weaver
  • T. Gennett

Organizations

  • Purdue University

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Analytical Chemistry
  • Chemistry
  • Diffusion Coefficient
  • Electrochemical Reactions
  • Electrodes
  • Electrolytes
  • Electron Transfer
  • Frequency
  • Measurement
  • Measuring Instruments
  • Oxidation Reduction Reactions
  • Polarography
  • Reliability
  • Resistance
  • Standards
  • Test And Evaluation

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  • Electrochemical Surface Science
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  • Mathematics or Statistics