Spectroelectrochemical measurement of chemical reaction rates. First-order catalytic processes

Nicholas Winograd, Henry N. Blount, Theodore Kuwana

Research output: Contribution to journalArticle

100 Citations (Scopus)

Abstract

The technique of in situ spectral monitoring of intermediates or products of an electrode process using optically transparent electrodes (ote) provides the opportunity of evaluating the kinetic rates for a wide variety of mechanisms. In this paper the technique has been applied to a catalytic reaction scheme in which the electroactive species originally present is regenerated by a pseudo-first-order homogeneous chemical reaction. Theoretical expressions relating the light absorbance of the electrode reaction product to kinetic parameters have been derived for conditions of single and double potential step electrochemical modes. The experimental test was provided by the electrooxidation of ferrocyanide in the presence of ascorbic acid at tin oxide ote.

Original languageEnglish (US)
Pages (from-to)3456-3462
Number of pages7
JournalJournal of physical chemistry
Volume73
Issue number10
DOIs
StatePublished - Jan 1 1969

Fingerprint

Reaction rates
Chemical reactions
chemical reactions
reaction kinetics
Electrodes
electrodes
ascorbic acid
Electrooxidation
Ascorbic acid
kinetics
Tin oxides
Reaction products
Kinetic parameters
reaction products
tin oxides
Ascorbic Acid
Kinetics
Monitoring
products

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physical and Theoretical Chemistry

Cite this

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Spectroelectrochemical measurement of chemical reaction rates. First-order catalytic processes. / Winograd, Nicholas; Blount, Henry N.; Kuwana, Theodore.

In: Journal of physical chemistry, Vol. 73, No. 10, 01.01.1969, p. 3456-3462.

Research output: Contribution to journalArticle

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