Ruthenium Oxide, a Suitable Redox Catalyst to Mediate Oxygen Production from Water
RuO2 dispersions were found to catalyze in aqueous solution the one electron reduction of Ce4+ and Ru(bipy)33+ ions under simultaneous evolution of oxygen from water. The reaction is first order with respect to the concentration of oxidants and in the case of Ce4+ the specific rate is 0.3 h-1 at am...
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| Format: | Article |
| Language: | deu |
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Swiss Chemical Society
1979-08-01
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| Series: | CHIMIA |
| Online Access: | https://www.chimia.ch/chimia/article/view/9449 |
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| _version_ | 1850170694221955072 |
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| author | J. Kiwi M. Grätzel |
| author_facet | J. Kiwi M. Grätzel |
| author_sort | J. Kiwi |
| collection | DOAJ |
| description |
RuO2 dispersions were found to catalyze in aqueous solution the one electron reduction of Ce4+ and Ru(bipy)33+ ions under simultaneous evolution of oxygen from water. The reaction is first order with respect to the concentration of oxidants and in the case of Ce4+ the specific rate is 0.3 h-1 at ambient temperature and 2 h-1 at 50 °C. The rate is drastically augmented when colloidal Ru dispersions are employed.
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| format | Article |
| id | doaj-art-0a78fb89fc0945c1aaa0105070c5d6e3 |
| institution | OA Journals |
| issn | 0009-4293 2673-2424 |
| language | deu |
| publishDate | 1979-08-01 |
| publisher | Swiss Chemical Society |
| record_format | Article |
| series | CHIMIA |
| spelling | doaj-art-0a78fb89fc0945c1aaa0105070c5d6e32025-08-20T02:20:26ZdeuSwiss Chemical SocietyCHIMIA0009-42932673-24241979-08-0133810.2533/chimia.1979.289Ruthenium Oxide, a Suitable Redox Catalyst to Mediate Oxygen Production from WaterJ. Kiwi0M. Grätzel1Institut de Chimie Physique, Ecole Polytechnique Fédérale, Lausanne, SuisseInstitut de Chimie Physique, Ecole Polytechnique Fédérale, Lausanne, Suisse RuO2 dispersions were found to catalyze in aqueous solution the one electron reduction of Ce4+ and Ru(bipy)33+ ions under simultaneous evolution of oxygen from water. The reaction is first order with respect to the concentration of oxidants and in the case of Ce4+ the specific rate is 0.3 h-1 at ambient temperature and 2 h-1 at 50 °C. The rate is drastically augmented when colloidal Ru dispersions are employed. https://www.chimia.ch/chimia/article/view/9449 |
| spellingShingle | J. Kiwi M. Grätzel Ruthenium Oxide, a Suitable Redox Catalyst to Mediate Oxygen Production from Water CHIMIA |
| title | Ruthenium Oxide, a Suitable Redox Catalyst to Mediate Oxygen Production from Water |
| title_full | Ruthenium Oxide, a Suitable Redox Catalyst to Mediate Oxygen Production from Water |
| title_fullStr | Ruthenium Oxide, a Suitable Redox Catalyst to Mediate Oxygen Production from Water |
| title_full_unstemmed | Ruthenium Oxide, a Suitable Redox Catalyst to Mediate Oxygen Production from Water |
| title_short | Ruthenium Oxide, a Suitable Redox Catalyst to Mediate Oxygen Production from Water |
| title_sort | ruthenium oxide a suitable redox catalyst to mediate oxygen production from water |
| url | https://www.chimia.ch/chimia/article/view/9449 |
| work_keys_str_mv | AT jkiwi rutheniumoxideasuitableredoxcatalysttomediateoxygenproductionfromwater AT mgratzel rutheniumoxideasuitableredoxcatalysttomediateoxygenproductionfromwater |