Electrochemistry of fuming sulphuric acids : III. Mechanism of the cathodic reactions on platinum
The cathodic potential-decay process on platinum electrodes in oleums has been investigated by means of a rotating disk. The non-stady parameters are compared with those already reported under steady-state conditions. Both results are discussed in terms of a general reaction mechanism comprising var...
Guardado en:
Autores principales: | , , |
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Formato: | Articulo |
Lenguaje: | Inglés |
Publicado: |
1971
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Materias: | |
Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/119938 https://www.sciencedirect.com/science/article/abs/pii/0013468671851290 |
Aporte de: |
Sumario: | The cathodic potential-decay process on platinum electrodes in oleums has been investigated by means of a rotating disk. The non-stady parameters are compared with those already reported under steady-state conditions. Both results are discussed in terms of a general reaction mechanism comprising various consecutive as well as alternative steps, considering that the main cathodic product is sulphur dioxide. The SO<sub>3</sub>-containing species acts as a depolarizer by reacting with hydrogen atoms adsorbed on the electrode surface. |
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