The photoelectrochemistry of the erythrosin—hydroquinone system at transparent SnO2 electrode; an erythrosin-modified electrode

✍ Scribed by A. Kirsch-De Mesmaeker; R. Dewitt

• Publisher: Elsevier Science
• Year: 1981
• Tongue: English
• Weight: 524 KB
• Volume: 26
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(81)85016-5

✦ Synopsis

The photoelectrochemical behavior of the erythrosin-hydroquinone system at a transparent SnO, electrode is shown to depend strongly on the electrode modification arising during dye oxidation. Only in specific experimental conditions, where SnO, remains unmodified, the system behaves as other xanthenic dyes at metallic electrodes, with participation of photochemically generated solution species to the photocurrent. Once the electrode gets modified, the irreversibly adsorbed dye film covering the SnO,, masks the solutibn contribution and the photocurrent originates then exclusively from this film.

(1978).