Evaluation of gas diffusion electrodes as detectors in amperometric hydrogen sensors
| Autor: | Lizcano-Valbuena,W. H., Perez,J., Paganin,V. A., Gonzalez,E. R. |
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| Jazyk: | angličtina |
| Rok vydání: | 2005 |
| Předmět: | |
| Zdroj: | Eclética Química v.30 n.2 2005 Eclética Química Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) instacron:UNESP |
| Popis: | This work is directed to the study and evaluation of gas diffusion electrodes as detectors in hydrogen sensors. Electrochemical experiments were carried out with rotating disk electrodes with a thin porous coating of the catalyst as a previous step to select useful parameters for the sensor. An experimental arrangement made in the laboratory that simulates the sensor was found appropriate to detect volumetric hydrogen percentages above 0.25% in mixtures H2:N2. The system shows a linear response for volumetric percentages of hydrogen between 0.25 and 2 %. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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