The mechanism of water oxidation catalyzed by nanolayered manganese oxides: New insights

• The mechanism of water oxidation is an enigma in both natural, and artificial photosynthesis.
• The mechanism of water oxidation by nanolayered manganese oxide is considered.
• We review the mechanism of water oxidation by Mn oxide in the presence of chemical oxidants.
• The attack of an outer-sphere water to an OH coordinated to Mn ion is suggested mechanism.

Herein we consider the mechanism of water oxidation by nanolayered manganese oxide in the presence of cerium(IV) ammonium nitrate. Based on membrane-inlet mass spectrometry results, the rate of H218O exchange of μ-O groups on the surface of the nanolayered Mn–K oxide, and studies on water oxidation in the presence of different ratios of acetonitrile/water we propose a mechanism for water oxidation by nanolayered Mn oxides in the presence of cerium(IV) ammonium nitrate.

We proposed a mechanism for water oxidation by nanolayered Mn oxides in the presence of cerium(IV) ammonium nitrate.Figure optionsDownload as PowerPoint slide