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Electrode kinetics of oxygen reduction - A theoretical and experimental analysis of the rotating ring-disc electrode methodIn order to calculate most of the rate constants for the intermediate formation of H2O2 in the electroreduction of O2 to H2O, the theoretical treatments of the rotating ring-disc electrode method by Damjanovic et al. (1966, 1967), Bagotskii et al. (1968, 1969), and Wroblowa et al. (1976) are modified. Rotating ring-disc electrode experimental data obtained for O2 reduction in Pt in 0.55 M H2SO4 are used to illustrate the calculations of rate constants according to the above theoretical treatments. A simple reaction model as proposed by the first author is consistent with the experimental data. The results indicate that O2 (97 percent) reduces to H2O in a direct four-electron transfer reaction. The adsorption of O2 is probably the rate-determining step in the potential region more negative than 0.5 V vs. reversible hydrogen electrode.
Document ID
19840047212
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Hsueh, K.-L.
(Clarkson Coll. of Technology Potsdam, NY, United States)
Chin, D.-T.
(Clarkson College of Technology Potsdam, NY, United States)
Srinivasan, S.
(Los Alamos National Laboratory Los Alamos, NM, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1983
Publication Information
Publication: Journal of Electroanalytical Chemistry and Interfacial Electrochemistry
Volume: 153
ISSN: 0022-0728
Subject Category
Inorganic And Physical Chemistry
Accession Number
84A29999
Funding Number(s)
CONTRACT_GRANT: NAG3-238
Distribution Limits
Public
Copyright
Other

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