Light-driven wateroxidation with a molecular tetra-cobalt(iii) cubanecluster
| Autor: | Giuseppina La Ganga, Andrea Sartorel, Sebastiano Campagna, Mirco Natali, Serena Berardi, Franco Scandola, Irene Bazzan, Fausto Puntoriero, Marcella Bonchio |
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| Rok vydání: | 2012 |
| Předmět: |
Light
Photochemistry chemistry.chemical_element Quantum yield Electrons Catalysis chemistry.chemical_compound 2 2'-Dipyridyl Coordination Complexes Pyridine Cobalt water oxidation ruthenium photosensitizer photocatalysis Photosensitizer Physical and Theoretical Chemistry chemistry.chemical_classification Photons Photolysis Water Cobalt Hydrogen-Ion Concentration Electron acceptor ruthenium photosensitizer Oxygen Kinetics water oxidation chemistry Cubane Photocatalysis Oxidation-Reduction photocatalysis |
| Zdroj: | Faraday discussions (Online) (2012). info:cnr-pdr/source/autori:Giuseppina La Ganga, Fausto Puntoriero, Sebastiano Campagna, Irene Bazzan, Serena Berardi, Marcella Bonchio, Andrea Sartorel, Mirco Natali and Franco Scandola/titolo:Light-driven water oxidation with a molecular tetra-cobalt(III) cubane cluster/doi:/rivista:Faraday discussions (Online)/anno:2012/pagina_da:/pagina_a:/intervallo_pagine:/volume |
| ISSN: | 1364-5498 1359-6640 |
| Popis: | Photoinduced water oxidation to molecular oxygen takes place in systems made of [Ru(bpy)3]2+ (bpy = 2,2'-bipyridine) as the photosensitizer, [Co4O4(O2CMe)4(py)4] (py = pyridine) as the molecular catalyst and Na2S2O8 as the sacrificial electron acceptor. The photochemical quantum yield of the process reaches the outstanding value of 30% and depends on pH and catalyst concentration. Transient absorption spectroscopy experiments aimed to clarify the first events of the photocatalytic process are also reported. |
| Databáze: | OpenAIRE |
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