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Visible Light-induced Oxygen Generation and Cyclic Water Cleavage Sensitized by Porphyrins

✍ Scribed by Enrico Borgarello; Kuppuswamy Kalyanasundaram; Yohmei Okuno; Michael Grätzel

Publisher
John Wiley and Sons
Year
1981
Tongue
German
Weight
340 KB
Volume
64
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

Zinctetramethylpyridylporphyrin (ZnTMPyP^4+^) in acidic aqueous solution sensitizes efficiently oxygen generation by visible light in the presence of acceptors such as Fe^3+^ ‐ and Ag^+^‐ions and colloidal RuO~2~/TiO~2~ redox catalyst. Hydrogen and oxygen are cogenerated under visible light illumination of ZnTMPyP^4+^ solutions when a bifunctional catalyst (Pt and RuO~2~ codeposited onto TiO~2~) is employed.

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