Basic Research of Water Photolysis Using Pyrochlore Oxides

Abstract:

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Photocatalytic proton reduction and water oxidation have been studied in a tris(2,2’-bipyridyl)ruthenium complex-catalyst system. Pyrochlore-type oxides have been used as proton reduction catalysts with a sacrificial electron donor (Na2EDTA) at pH 7 and as water oxidation catalysts with a sacrificial electron acceptor (K2S2O8) at pH 3. Rate constants for the proton reduction were estimated on the basis of photochemical processes. Yb2Ru2O7-δ was found to be the most active catalyst for proton reduction and water oxidation catalyst in this system.

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Periodical:

Edited by:

Kazumi Kato, Tadashi Takenaka, Masasuke Takata and Kazuo Shinozaki

Pages:

297-300

DOI:

10.4028/www.scientific.net/KEM.388.297

Citation:

N. Mori et al., "Basic Research of Water Photolysis Using Pyrochlore Oxides", Key Engineering Materials, Vol. 388, pp. 297-300, 2009

Online since:

September 2008

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$35.00

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