Challenging the [Ru(bpy) 3 ] 2+ Photosensitizer with a Triazatriangulenium Robust Organic Dye for Visible-Light-Driven Hydrogen Production in Water
| Autor: | Grégory Dupeyre, Philippe P. Lainé, Matthew Oshinowo, Jérôme Fortage, Jérôme Chauvin, Robin Gueret, Mustapha Dahmane, Marie-Noëlle Collomb, Laurélie Poulard |
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| Přispěvatelé: | Département de Chimie Moléculaire - Chimie Inorganique Redox Biomimétique [2016-2019] (DCM - CIRE [2016-2019]), Département de Chimie Moléculaire [2016-2019] (DCM [2016-2019]), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Interfaces, Traitements, Organisation et Dynamique des Systèmes (ITODYS (UMR_7086)), Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Département de Chimie Moléculaire - Chimie Inorganique Redox Biomimétique (DCM - CIRE), Institut de Chimie Moléculaire de Grenoble (ICMG)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7), Département de Chimie Moléculaire - Chimie Inorganique Redox Biomimétique (DCM - CIRE ), Département de Chimie Moléculaire (DCM), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Université Paris Diderot - Paris 7 (UPD7)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
inorganic chemicals
Aqueous solution Chemistry chemistry.chemical_element 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry Ascorbic acid 01 natural sciences Catalysis 0104 chemical sciences Artificial photosynthesis Ruthenium Photocatalysis [CHIM]Chemical Sciences Photosensitizer 0210 nano-technology ComputingMilieux_MISCELLANEOUS Hydrogen production |
| Zdroj: | ACS Catalysis ACS Catalysis, American Chemical Society, 2018, 8 (5), pp.3792-3802 ACS Catalysis, American Chemical Society, 2018, 8 (5), pp.3792-3802. ⟨10.1021/acscatal.7b04000⟩ |
| ISSN: | 2155-5435 |
| Popis: | Photosensitizers used in homogeneous photocatalytic systems for artificial photosynthesis, such as hydrogen production, are typically based on expensive transition metal complexes such as d6 ruthenium(II) or iridium(III). In this work, we demonstrate efficient H2 production in acidic water by using an organic dye derived from the triazatriangulenium (TATA+) family as a visible-light-absorbing photosensitizer (PS). By associating the hydrosoluble tris(ethoxyethanol)triazatriangulenium with an efficient H2-evolving cobalt catalyst and ascorbic acid as sacrificial electron donor (SD), remarkable photocatalytic performances were reached in aqueous solution at pH 4.5, under visible-light irradiation, with up to 8950 catalytic cycles versus catalyst. The performances of this dye largely exceed those of the benchmark Ru tris-bipyridine in the same experimental conditions when low concentrations of catalyst are used. This higher efficiency has been clearly ascribed to the remarkable robustness of the reduced form... |
| Databáze: | OpenAIRE |
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