Water Reduction with Visible Light: Synergy between Optical Transitions and Electron Transfer in Au-TiO2 Catalysts Visualized by In situ EPR Spectroscopy


  • This work was supported by the Deutsche Forschungs-gemeinschaft (DFG-SPP1613). We thank Petra Bartels and the service analytical department for their support.


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Golden electrons: Visible light excites conduction electron transfer from gold particles to support vacancies where they are taken up by protons to produce hydrogen. This transfer process was visualized by in situ EPR spectroscopy.