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EnglishPhotoinduced water oxidation to molecular oxygen takes place in systems made of [Ru(bpy)3]2+ (bpy = 2,2'-bipiridine) 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.
Photoinduced water oxidation to molecular oxygen takes place in systems made of [Ru(bpy) 3] 2+ (bpy = 2,2′-bipyridine) as the photosensitizer, [Co 4O 4(O 2CMe) 4(py) 4] (py = pyridine) as the molecular catalyst and Na 2S 2O 8 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. © 2012 The Royal Society of Chemistry.
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| Data di pubblicazione: | 2012 | |
| Titolo: | Light-driven water oxidation with a molecular tetra-cobalt(III) cubane cluster | |
| Autori: | G., La Ganga; F., Puntoriero; S., Campagna; I., Bazzan; Berardi, Serena; M., Bonchio; A., Sartorel; Natali, Mirco; Scandola, Franco | |
| Rivista: | FARADAY DISCUSSIONS | |
| Abstract in inglese: | Photoinduced water oxidation to molecular oxygen takes place in systems made of [Ru(bpy) 3] 2+ (bpy = 2,2′-bipyridine) as the photosensitizer, [Co 4O 4(O 2CMe) 4(py) 4] (py = pyridine) as the molecular catalyst and Na 2S 2O 8 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. © 2012 The Royal Society of Chemistry. | |
| Abstract: | Photoinduced water oxidation to molecular oxygen takes place in systems made of [Ru(bpy)3]2+ (bpy = 2,2'-bipiridine) 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. | |
| Digital Object Identifier (DOI): | 10.1039/c1fd00093d | |
| Handle: | http://hdl.handle.net/11392/1494713 | |
| Appare nelle tipologie: | 03.1 Articolo su rivista |
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