Olaya, Astrid J.Hidalgo-Acosta, Jonnathan C.Omatsu, TerumasaGirault, Hubert H.2018-08-062018-08-062018-08-062018-08-0110.1021/jacs.8b06729https://infoscience.epfl.ch/handle/20.500.14299/147646Photoexcited protonated tetrathiafulvalene (HTTF+) was found to act as a photosensitizer, injecting electrons into Pt microparticles (floating electrocatalysts) to produce H2 and TTF•+ in acidic acetonitrile. In addition, TTF•+ was electrochemically reduced back to TTF on a carbon electrode, to be further protonated to continuously produce H2 photochemically. The onset potential for the electrochemical recycling of TTF•+ on carbon was set at a potential 500 mV more positive than the potential required for the direct reduction of protons. HTTF+ showed no signs of decomposition after 51 h of continuous recycling and photoinduced production of H2, proving stability and reversibility.text::journal::journal article::research article