Perylenediimide based moleculat catalyst for hydrogen evolution reaction Estera Hoffman 1 , Karol Kozakiewicz 1,2 , Michał Monka 1 , , Illia E. Serdiuk 1* , Daria Grzywacz 1,2 , Małgorzata Rybaczyńska 2 , Beata Liberek 2 , Piotr Bojarski 1 1 Faculty of Mathematics, Physics and Informatics, University of Gdansk, Wita Stwosza 57, 80-308 Gdansk, Poland, 2 Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdansk, Poland Perylenediimides (PDI) are organic compounds which have wide absorption spectra in a visible range. Furthermore because of their suitable energy levels, ability to store energy for a relatively long time, high photostability and semiconductors properties they are very promising photosensitizers for photocatalytic water spliting. Main purpose of investigations was finding the best system to hydrogen evolution reaction from water spliting using sunlight energy. The system was based on water solutions with PDI as photosensitizes with catalyst. Solutions were prepared with different variant as sacrifical reagent and Sodium dodecyl sulfate (SDS) to make the system solubility in water. The research allowed to select the best candidates for photosensitization. The best of the tested compounds have a donor-acceptor structure and may exhibit the phenomenon of thermally activated delayed fluorescence (TADF) [1] . References 1. I. E. Serdiuk, M. Mońka, K. Kozakiewicz, B. Liberek, P. Bojarski, S. Y. Park. Vibrationally Assisted Direct Intersystem Crossing between the Same Charge-Transfer States for Thermally Activated Delayed Fluorescence: Analysis by Marcus– Hush Theory Including Reorganization Energy. J. Phys. Chem. B 2021, 125, 10, 2696.
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