Catalytic water oxidation at single metal sites

Gold peroxide complexes and the conversion of hydroperoxides into gold hydrides by successive oxygen-transfer reactions

“…The cleavage of water into hydrogen and oxygen remains a highly desirable goal in the search for alternatives to fossil fuels but continues to pose significant challenges 45 . Efforts to construct catalytic cycles for water cleavage rely on a detailed understanding of each mechanistic step, and for catalysts based on well-defined coordination complexes a number of mechanisms are operative [46][47][48] 49 . On the other hand, an alternative and potentially simpler pathway is available that does not require changes in oxidation states (Fig.…”

Role of ligands in catalytic water oxidation by mononuclear ruthenium complexes

“…These results have suggested that the single metal center is catalytically active enough for water oxidation and this observation opened the door for the development of a new series of systems with catalytic activity and synthetic flexibil-A c c e p t e d M a n u s c r i p t 2 ity. Thus, the range of water oxidation catalysts based on transition metal complexes has been significantly enlarged, not only including oligonuclear Mn and Ru series, but also the related mononuclear species and complexes of iridium, iron and cobalt [9,10,11,12,13,14,15,16,17,18]. In particular, the corresponding catalytic mechanisms, kinetics, and activity towards water oxidation have been reviewed.…”

Water Oxidation at Electrodes Modified with Earth‐Abundant Transition‐Metal Catalysts

“…Our analysis of their pros and cons will be complementary to more general recent reviews, focused on another aspects of this crucial challenge. [17][18][19][20][21][22][23] …”