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

doi:10.1246/cl.2005.946

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

Research output: Contribution to journal › Article › peer-review

66 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 language	English
Pages (from-to)	946-947
Number of pages	2
Journal	Chemistry Letters
Volume	34
Issue number	7
DOIs	https://doi.org/10.1246/cl.2005.946
Publication status	Published - 2005 Jul 5
Externally published	Yes

ASJC Scopus subject areas

Chemistry(all)

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10.1246/cl.2005.946

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

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.",

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T1 - A novel photodeposition method in the presence of nitrate ions for loading of an iridium oxide cocatalyst for water splitting

AU - Iwase, Akihide

AU - Kato, Hideki

AU - Kudo, Akihiko

PY - 2005/7/5

Y1 - 2005/7/5

N2 - 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.

AB - 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.

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

Abstract

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