A Co(ii )–Ru(ii ) dyad relevant to light-driven water oxidation catalysis
| Autor: | Andrea Sartorel, Alejandro Montellano López, Claudio Chiorboli, Marcella Bonchio, Erica Pizzolato, Franco Scandola, Mirco Natali |
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| Rok vydání: | 2014 |
| Předmět: |
Photosensitizing Agents
Light Hydrogen Chemistry Water General Physics and Astronomy chemistry.chemical_element Cobalt Electrochemistry Photochemistry Oxygen Catalysis Ruthenium Artificial photosynthesis Photocatalysis water oxidation catalysis Catalytic oxidation Water splitting Physical and Theoretical Chemistry Oxidation-Reduction |
| Zdroj: | Phys. Chem. Chem. Phys.. 16:12000-12007 |
| ISSN: | 1463-9084 1463-9076 |
| DOI: | 10.1039/c3cp55369h |
| Popis: | Artificial photosynthesis aims at efficient water splitting into hydrogen and oxygen, by exploiting solar light. As a priority requirement, this process entails the integration of suitable multi-electron catalysts with light absorbing units, where charge separation is generated in order to drive the catalytic routines. The final goal could be the transposition of such an asset into a photoelectrocatalytic cell, where the two half-reactions, proton reduction to hydrogen and water oxidation to oxygen, take place at two appropriately engineered photoelectrodes. We herein report a covalent approach to anchor a Co(II) water oxidation catalyst to a Ru(II) polypyridine photosensitizer unit; photophysical characterisation and the catalytic activity of such a dyad in a light activated cycle are reported, and implications for the development of regenerative systems are discussed. |
| Databáze: | OpenAIRE |
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