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Light‐Induced Water Splitting with Hematite: Improved Nanostructure and Iridium Oxide Catalysis
Author(s) -
Tilley S. David,
Cornuz Maurin,
Sivula Kevin,
Grätzel Michael
Publication year - 2010
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201003110
Subject(s) - hematite , tin oxide , water splitting , oxide , nanostructure , catalysis , fluorine , iron oxide , materials science , nanotechnology , inorganic chemistry , chemistry , photocatalysis , metallurgy , biochemistry
Revved‐up rust! Light‐induced water splitting over iron oxide (hematite) has been achieved by using a particle‐assisted deposition technique and IrO 2 ‐based surface catalysis. Photocurrents in excess of 3 mA cm −2 were obtained at +1.23 V versus the reversible hydrogen electrode under AM 1.5 G 100 mW cm −2 simulated sunlight. These photocurrents are unmatched by any other oxide‐based photoanode. FTO=fluorine‐doped tin oxide.

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