A novel photodeposition method in the presence of nitrate ions for loading of an iridium oxide cocatalyst for water splitting

Akihide Iwase, Hideki Kato, Akihiko Kudo

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60 Citations (Scopus)

Abstract

IrO 2 cocatalysts for water splitting were photodeposited from aqueous solution of (NH 4) 2[IrCl 6] or Na 3 [IrCl 6] in the presence of nitrate ions on La-doped NaTaO 3 (denoted as NaTaO 3:La) photocatalysts, while metallic iridium particles were deposited in the absence of nitrate ions. The IrO 2-loaded NaTaO 3:La showed the activity for water splitting 2.5 times higher than the nonloaded NaTaO 3:La. In contrast, the steady activity was not obtained for the metallic iridium-loaded photocatalyst, because the back reaction quickly proceeded.

Original languageEnglish
Pages (from-to)946-947
Number of pages2
JournalChemistry Letters
Volume34
Issue number7
DOIs
Publication statusPublished - 2005 Jul 5
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)

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