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Water Oxidation Using a Particulate BaZrO 3 ‐BaTaO 2 N Solid‐Solution Photocatalyst That Operates under a Wide Range of Visible Light
Author(s) -
Maeda Kazuhiko,
Domen Kazunari
Publication year - 2012
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.201204635
Subject(s) - materials science , solid solution , photocatalysis , cathode , visible spectrum , water splitting , band gap , irradiation , anode , range (aeronautics) , particulates , chemical engineering , optoelectronics , inorganic chemistry , analytical chemistry (journal) , electrode , chemistry , metallurgy , catalysis , physics , organic chemistry , nuclear physics , engineering , composite material , biochemistry , chromatography
Tripping the light fantastic : Despite small band gap energies (1.7–1.8 eV), BaZrO 3 ‐BaTaO 2 N solid solutions (Zr/Ta≤0.1) are capable of photocatalyzing both water oxidation and reduction even under irradiation above 660 nm. Solar water splitting to form H 2 and O 2 was also demonstrated using a photoelectrochemical cell consisting of a BaZrO 3 –BaTaO 2 N solid solution as an anode and a Pt wire cathode.