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Visible‐Light‐Driven Water Oxidation on a Photoanode by Supramolecular Assembly of Photosensitizer and Catalyst
Author(s) -
Li Hua,
Li Fei,
Wang Yong,
Bai Lichen,
Yu Fengshou,
Sun Licheng
Publication year - 2016
Publication title -
chempluschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.201500539
Subject(s) - photocurrent , catalysis , photosensitizer , ruthenium , photochemistry , visible spectrum , supramolecular chemistry , water splitting , materials science , electrochemistry , chemistry , artificial photosynthesis , electrode , photocatalysis , organic chemistry , optoelectronics , molecule
A ruthenium water oxidation catalyst (WOC) bearing hydrophobic ligands was incorporated on the surface of a dye‐sensitized nanostructured TiO 2 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.