Abstract
Recently, several mononuclear water oxidation catalysts have been reported, a breakthrough considering the dogma that at least two metal sites were required to oxidize water efficiently. In this Review various mononuclear catalysts which have been reported in the last five years are reviewed, as well as their implementation in prototype devices that allow dioxygen formation to be coupled to dihydrogen production will be discussed.
One is enough: Mononuclear water oxidation catalysts are noteworthy as they can achieve turnover frequencies similar to those of the oxygen-evolving center of Photosystem II. Several of these mononuclear catalysts are highlighted, as well as studies on their incorporation into a device that splits water upon irradiation with visible light (see scheme)—an important first step towards efficient solar energy to fuel conversion.
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