✦ LIBER ✦

Cyclic voltammetric studies of chemically and electrochemically generated oxygen species on activated carbons

✍ Scribed by Andrzej Świa̧tkowski; Maciej Pakuła; Stanisław Biniak

Publisher: Elsevier Science
Year: 1997
Tongue: English
Weight: 604 KB
Volume: 42
Category: Article
ISSN: 0013-4686
DOI: 10.1016/s0013-4686(96)00359-3

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✦ Synopsis

Activated carbons are commonly used as electrode materials in numerous applications. In this work the cathodic reduction of oxygen species formed on a carbon surface during chemical oxidation as well as electrogenerated in situ was studied at powdered activated carbon electrodes (puces). The peak current produced during the cathodic reduction of oxygen species increased signi~cantly when anodically-treated electrode materials were used. Similarities and differences in the electrochemical behaviour of chemically and electrochemically generated oxygen species were detected cyclovoltammetrically. In both cases the bonding of oxygen with the carbon surface appears to be similar.

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