Thin film a-C/Pt nanocomposite catalysts for toxic gas sensors
| Autor: | D. Fedoseenkov, A. Nefedov, Luca Minati, S. Fanchenko, Giorgio Speranza, A.V. Shorokhov, S. Kharitonov, Alexander Baranov, Lucia Calliari |
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| Rok vydání: | 2006 |
| Předmět: |
Nanocomposite
Materials science chemistry.chemical_element Nanotechnology Surfaces and Interfaces General Chemistry Sputter deposition Condensed Matter Physics Electrochemistry Surfaces Coatings and Films Electrochemical gas sensor Platinum black chemistry Chemical engineering Electrode Materials Chemistry Thin film Platinum |
| Zdroj: | Surface and Interface Analysis. 38:823-827 |
| ISSN: | 1096-9918 0142-2421 |
| Popis: | We compare the sensitivity of electrochemical gas sensors employing either traditional working electrodes based on platinum black or new working electrodes based on a-C/Pt films deposited by magnetron sputtering (MS). The new electrodes are shown to be five times less sensitive as compared to the traditional ones. However, their Pt content is about 25 times less as compared to traditional electrodes, which suggests a more efficient use of Pt. Morphological, compositional and structural investigations are performed to understand the electrochemical behaviour of the two electrodes. |
| Databáze: | OpenAIRE |
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