Oxygen ionization on silver in alkaline solutions

✍ Scribed by N.A. Shumilova; G.V. Zhutaeva; M.P. Tarasevich

• Publisher: Elsevier Science
• Year: 1966
• Tongue: English
• Weight: 518 KB
• Volume: 11
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(66)80035-x

✦ Synopsis

The mechanism of oxygen ionization on silver in alkaline solutions has been investigated by the methods of triangular and trapezoidal voltage pulses as well as by the method of applying triangular voltage pulses on the rotating disk electrode with a ring. The process occurs with the participation both of 2 and 4 electrons, depending on the surface state, in particular on its oxidation state and on the potential.

Oxygen adsorbed on silver during anodic polarization is reduced directly to OH-without the intermediate formation of hydrogen peroxide.

R&m&-Le m6canisme de l'ionisation de l'oxygene sur argent darts une solution alcaline eat t5tudie par les methodes de pulsions sous tensions truurgulaire et trapezoIdale, comme de pulsion sous tension triangulaire sur une electrode a disque tournant avec anneau. Le processus implique la participation simult&e. de 2 ou de 4 electrons, selon petat de surface, en particulier son &at d'oxydation et son potentiel.

L'oxygene adsorb6 sur Ag durant la polarisation anodique est n5duit directement en OH-sans formation intermediaire de HBOp.

Zusammenfassung-Man untersuchte den Mechanismus der Sauerstoffreduktion an Silberelektroden in alkalischen Liisungen,