Kinetics and mechanism of the formation and reduction of oxide layers on platinum. I: Oxidation and reduction of platinum electrodes

Oxidation and reduction of Pt electrodes have been investigated in the potential range up to 3.0 V in acid, alkaline and phosphate buffer solutions with p H from 0-14. It is shown that oxygen adsorption and absorption on Pt are usually superimposed, but they may be artificially separated using a str...

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Bibliographic Details
Published in:Journal of electroanalytical chemistry and interfacial electrochemistry 1984-11, Vol.178 (2), p.247-269
Main Authors: VASSILIEV, YU. B, BAGOTZKY, V. S, GROMYKO, V. A
Format: Article
Language:English
Subjects:
Applied sciences
Corrosion
Corrosion mechanisms
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Metals, semimetals and alloys
Metals. Metallurgy
Physics
Specific materials
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Summary:Oxidation and reduction of Pt electrodes have been investigated in the potential range up to 3.0 V in acid, alkaline and phosphate buffer solutions with p H from 0-14. It is shown that oxygen adsorption and absorption on Pt are usually superimposed, but they may be artificially separated using a strong dependence of the second process upon Pt pretreatment and potential sweep rate. The dependence of O surface coverage on potential has several characteristic regions, each corresponding to the formation of a definite surface oxycompound. 63 ref.--AA
ISSN:0022-0728