✦ LIBER ✦

Some oxide catalysts for the anodic evolution of chlorine: reaction mechanism and catalytic activity

✍ Scribed by T. Arikado; C. Iwakura; H. Tamura

Publisher: Elsevier Science
Year: 1978
Tongue: English
Weight: 809 KB
Volume: 23
Category: Article
ISSN: 0013-4686
DOI: 10.1016/0013-4686(78)87026-1

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✦ Synopsis

The chlorine evolution reaction was investigated on several oxide electrodes. The active site on the electrode surface is concluded to be the metal site, based on the dependence of the anodic current on pH of the electrolyte. The reaction mechanism can be determined by the d-electron configuration in the oxide; ie the reaction proceeds by the Volmer-Heyrovsky mechanism on the electrode containing the transition metal cation with partially filled t,, orbitals and empty es prbitals, whereas the Volmer-Tafel mechanism on the electrode containing the transition metal cation with just or half filled tza orbit& and partially filled e, orbit&.

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