| Publikationstyp: | Beitrag in wissenschaftlicher Zeitschrift |
| Art der Begutachtung: | Peer review (Publikation) |
| Titel: | Chromium-induced deactivation of a commercial honeycomb noble metal-based CO oxidation catalyst |
| Autor/-in: | Keav, Sylvain Lu, Ye Matam, Santhosh Kumar Maegli, Alexandra E. Heel, Andre Weidenkaff, Anke Ferri, Davide |
| DOI: | 10.1016/j.apcata.2013.10.005 |
| Erschienen in: | Applied Catalysis B: Environmental |
| Band(Heft): | 469 |
| Seite(n): | 259 |
| Seiten bis: | 266 |
| Erscheinungsdatum: | 2014 |
| Verlag / Hrsg. Institution: | Elsevier |
| ISSN: | 0926-860X |
| Sprache: | Englisch |
| Schlagwörter: | CO oxidation; Noble metal; Honeycomb; Deactivation; Chromium |
| Fachgebiet (DDC): | 540: Chemie |
| Zusammenfassung: | A commercially available honeycomb CO oxidation catalyst used to control the exhaust of a solid oxide fuel cell (SOFC) based power system has been characterized after prolonged use. X-ray fluorescence (XRF), X-ray diffraction (XRD), Raman spectroscopy, N2 physisorption, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) were employed to determine the phase composition, the morphology and the chemical state of the various components. Besides sintering of the active phase, deactivation was found to occur mainly as the result of the deposition of chromium-containing species on the catalyst washcoat. These fouling species mainly appeared as highly crystalline Cr2O3 particles and could still maintain acceptable CO oxidation activity under dry atmosphere. However, the formation of surface chromium oxyhydroxide species was found to occur in the presence of water vapor, leading to significant catalyst deactivation. |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/9066 |
| Volltext Version: | Publizierte Version |
| Lizenz (gemäss Verlagsvertrag): | Lizenz gemäss Verlagsvertrag |
| Departement: | School of Engineering |
| Organisationseinheit: | Institute of Materials and Process Engineering (IMPE) |
| Enthalten in den Sammlungen: | Publikationen School of Engineering |
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Keav, S., Lu, Y., Matam, S. K., Maegli, A. E., Heel, A., Weidenkaff, A., & Ferri, D. (2014). Chromium-induced deactivation of a commercial honeycomb noble metal-based CO oxidation catalyst. Applied Catalysis B: Environmental, 469, 259–266. https://doi.org/10.1016/j.apcata.2013.10.005
Keav, S. et al. (2014) ‘Chromium-induced deactivation of a commercial honeycomb noble metal-based CO oxidation catalyst’, Applied Catalysis B: Environmental, 469, pp. 259–266. Available at: https://doi.org/10.1016/j.apcata.2013.10.005.
S. Keav et al., “Chromium-induced deactivation of a commercial honeycomb noble metal-based CO oxidation catalyst,” Applied Catalysis B: Environmental, vol. 469, pp. 259–266, 2014, doi: 10.1016/j.apcata.2013.10.005.
KEAV, Sylvain, Ye LU, Santhosh Kumar MATAM, Alexandra E. MAEGLI, Andre HEEL, Anke WEIDENKAFF und Davide FERRI, 2014. Chromium-induced deactivation of a commercial honeycomb noble metal-based CO oxidation catalyst. Applied Catalysis B: Environmental. 2014. Bd. 469, S. 259–266. DOI 10.1016/j.apcata.2013.10.005
Keav, Sylvain, Ye Lu, Santhosh Kumar Matam, Alexandra E. Maegli, Andre Heel, Anke Weidenkaff, and Davide Ferri. 2014. “Chromium-Induced Deactivation of a Commercial Honeycomb Noble Metal-Based CO Oxidation Catalyst.” Applied Catalysis B: Environmental 469: 259–66. https://doi.org/10.1016/j.apcata.2013.10.005.
Keav, Sylvain, et al. “Chromium-Induced Deactivation of a Commercial Honeycomb Noble Metal-Based CO Oxidation Catalyst.” Applied Catalysis B: Environmental, vol. 469, 2014, pp. 259–66, https://doi.org/10.1016/j.apcata.2013.10.005.
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