Water Oxidation Using a Particulate BaZrO₃‐BaTaO₂N Solid‐Solution Photocatalyst That Operates under a Wide Range of Visible Light

Tripping the light fantastic: Despite small band gap energies (1.7–1.8 eV), BaZrO3-BaTaO2N 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 H2 and O2 was also demonstrated using a photoelectrochemical cell consisting of a BaZrO3–BaTaO2N solid solution as an anode and a Pt wire cathode. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.

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