Kinetics and mechanism of the electrochemical reduction of a platinum oxide monolayer in molten alkaline bisulphates under constant ageing conditions : II. Temperature effect
The electrochemical reduction of a platinum oxide monolayer anodically formed in NaHSO<sup>4</sup>−KHSO<sup>4</sup> and KHSO<sup>4</sup> melts is investigated under equivalent ageing conditions from 185 to 315°C with application of the linear potential sweep techn...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 1974 |
| País: | Argentina |
| Institución: | Universidad Nacional de La Plata |
| Repositorio: | SEDICI (UNLP) |
| Idioma: | inglés |
| OAI Identifier: | oai:sedici.unlp.edu.ar:10915/121710 |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/121710 |
| Access Level: | acceso abierto |
| Palabra clave: | Ciencias Exactas Química Electrochemical reduction Platinum oxide monolayer Temperature |
| Sumario: | The electrochemical reduction of a platinum oxide monolayer anodically formed in NaHSO<sup>4</sup>−KHSO<sup>4</sup> and KHSO<sup>4</sup> melts is investigated under equivalent ageing conditions from 185 to 315°C with application of the linear potential sweep technique. The experimental potentiodynamic current/potential profiles are reproduced with equations derived from a reaction mechanism involving an initial electron transfer reaction followed by a second order recombination step under Temkin conditions. The rate equations imply negative Temkin factors which, in absolute value, increase with temperature. |
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