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Molecular Mechanisms of Oxygen Evolution Reactions for Artificial Photosynthesis
Version 1
: Received: 31 August 2023 / Approved: 31 August 2023 / Online: 1 September 2023 (13:52:27 CEST)
A peer-reviewed article of this Preprint also exists.
Nosaka, Y. Molecular Mechanisms of Oxygen Evolution Reactions for Artificial Photosynthesis. Oxygen 2023, 3, 407-451. Nosaka, Y. Molecular Mechanisms of Oxygen Evolution Reactions for Artificial Photosynthesis. Oxygen 2023, 3, 407-451.
Abstract
Addressing global environmental problem, water splitting to produce hydrogen fuel by solar energy is getting so much attention. In the water splitting, the essential problem to solve is the development of efficient catalysts for oxygen production. In this paper, having the prospect for a practical application of photocatalysts to artificial photosynthesis, molecular mechanisms in the current literature are briefly reviewed. At first, recent progress in the function of Mn cluster at the natural photosystem II is briefly described. The kinds of devices in which oxygen evolution reaction (OER) catalysts are used were designated; water electrolyzers, photoelectrodes, and photocatalysts. Some methods for analyzing molecular mechanism in OER catalysis, emphasized by FTIR method, are shown briefly. After describing common OER mechanisms, the molecular mechanisms are discussed for TiO2 and BiVO4 photoelectrodes with our novel data, followed by presenting of co-catalysts IrO2, RuO2, NiO2, and other metal oxides for OER catalysts. Recent reports describing OER catalysts of perovskites, layered double hydroxides (LDH), metal-organic frameworks (MOF), single atom catalysts, as well as metal complexes are reviewed. Finally, by comparing with natural photosystem, the requiring factors to improve the activity of the catalysts for artificial photosynthesis will be discussed.
Keywords
oxygen evolution reaction; catalysis; mechanism; artificial photosynthesis; titanium oxide; bismuth vanadate; perovskite; metal oxides; Fourier transform infrared spectroscopy; density functional theory; metal oxide; solar to hydrogen conversion efficiency
Subject
Chemistry and Materials Science, Physical Chemistry
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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