S. David Tilley, Maurin Cornuz, Kevin Sivula and Michael Grätzel Light-Induced Water Splitting with Hematite: Improved Nanostructure and Iridium Oxide Catalysis Angewandte Chemie International Edition 49
Revved-up rust! Light-induced water splitting over iron oxide (hematite) has been achieved by using a particle-assisted deposition technique and IrO2-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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