An examination of the palladium/palladium oxide system and its utility for pH-sensing electrodes

Monocrystalline and polycrystalline palladium has been used for the electrochemical examination of the palladium—palladium oxide system in aqueous solutions. Two different methods were used to prepare the electrodes, namely a thermal method of oxidation at high temperature and an electrochemical met...

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Bibliographic Details
Published in:Electrochimica acta 1986, Vol.31 (1), p.29-38
Main Authors: Kinoshita, Eita, Ingman, Folke, Edwall, Gunnar, Glab, Stanislaw
Format: Article
Language:English
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Summary:Monocrystalline and polycrystalline palladium has been used for the electrochemical examination of the palladium—palladium oxide system in aqueous solutions. Two different methods were used to prepare the electrodes, namely a thermal method of oxidation at high temperature and an electrochemical method. Electrodes prepared by the electrochemical method did not have a good pH response. The properties of the thermally prepared electrodes depend on the temperature at which the oxidation was made. The optimum temperature is 750°C. The temperature range studied was 450–870°C. Electrodes prepared by the thermal method show an almost theoretical slope in the pH range 2.5–8.
ISSN:0013-4686
1873-3859
DOI:10.1016/0013-4686(86)80057-3