Visible‐Light‐Driven Water Oxidation on a Photoanode by Supramolecular Assembly of Photosensitizer and Catalyst. Issue 10 (6th October 2016)

• Record Type: Journal Article
• Authors: Li, Hua; Li, Fei; Wang, Yong; Bai, Lichen; Yu, Fengshou; Sun, Licheng
• Is Part Of: ChemPlusChem. Volume 81:Issue 10(2016)
• Page Start: 1056
• Page End: 1059
• Publication Date: 2016-10-06
• Subjects: dye-sensitized photoelectrochemical cells -- host–guest systems -- ruthenium -- solar cells -- water splitting; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/cplu.201500539
• Languages: English
• ISSNs: 2192-6506

Abstract

Abstract: A ruthenium water oxidation catalyst (WOC) bearing hydrophobic ligands was incorporated on the surface of a dye‐sensitized nanostructured TiO2 film by formation of a host–guest adduct with the dye. This provides a new strategy for constructing photocatalytically active electrodes for water oxidation. The resultant photoanode exhibits a photocurrent of 800 μA cm −2 under visible‐light illumination (λ>400 nm, 300 mW cm −2 ) and 240 μA cm −2 under simulated sunlight illumination (AM 1.5G, 100 mW cm −2 ) with an applied bias of 0.2 V vs. NHE in neutral phosphate buffer. Abstract : A "take‐charge" guest : A ruthenium water oxidation catalyst was incorporated on the surface of a dye‐sensitized nanostructured TiO2 film when it formed a host–guest adduct with the chromophore, providing a new strategy for photoanode construction.