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An investigation of the oxygen cathode with a silver catalyst polarized in the region of negative potentials

✍ Scribed by Karel Smrček

Publisher
Elsevier Science
Year
1981
Tongue
English
Weight
482 KB
Volume
7
Category
Article
ISSN
0378-7753

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✦ Synopsis

Different types of oxygen diffusion cathodes have been tested to determine whether cathodic polarization of the electrodes at negative potentials has an influence on their further catalytic activity for oxygen ionization, and whether under these conditions potassium from the KOH solution penetrates into the silver catalyst.

The results show that even if these electrodes were kept in the hydrogen evolution potential range for a long time, there were no changes in the catalytic activity of the silver in oxygen gas electrodes. No evidence of potassium penetration into the silver catalyst was found.

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