Artículo
Mariño, F.; Baronetti, G.; Laborde, M.; Bion, N.; Le Valant, A.; Epron, F.; Duprez, D. "Optimized CuO-CeO2 catalysts for COPROX reaction" (2008) International Journal of Hydrogen Energy. 33(4):1345-1353
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Abstract:
CuO - CeO2 catalyst precursors were synthesized by homogeneous thermal decomposition of urea. Catalysts containing different Cu/Ce ratios were obtained after calcination of the precursors at 450 {ring operator} C and characterized by ICP-OES, N2 adsorption, XRD and TPR. Catalytic tests were performed in the temperature range 100 - 300 {ring operator} C to evaluate the activity of these samples for the COPROX reaction. A strong synergy between Cu and Ce is evidenced by the difference in the catalytic activity of the individual oxides (CuO and CeO2), a mechanical mixture of both oxides and a Cu-Ce mixed catalyst. The synergy between Cu and Ce is confirmed by the improvement of the reducibility of both cations in the mixed samples. Nitric acid and ammonium carbonate washed catalysts, especially high-copper-content samples, are more active than the untreated catalysts suggesting that the washing procedure could provoke a destruction of the polycrystalline structure that improves the contact between the reactants and the catalytic sites. © 2007 International Association for Hydrogen Energy.
Registro:
| Documento: | Artículo |
| Título: | Optimized CuO-CeO2 catalysts for COPROX reaction |
| Autor: | Mariño, F.; Baronetti, G.; Laborde, M.; Bion, N.; Le Valant, A.; Epron, F.; Duprez, D. |
| Filiación: | Laboratorio de Procesos Catalíticos, DIQ-FI, Universidad de Buenos Aires, Pabellon Industrias, Ciudad Universitaria, 1428 Buenos Aires, Argentina LACCO-UMR 6503, CNRS-Université de Poitiers, 40 Avenue du Recteur Pineau, F-86022 Poitiers Cedex, France |
| Palabras clave: | Ceria; Copper; Hydrogen; PEM fuel cells; Preferential oxidation of CO; Calcination; Copper compounds; Nitric acid; Proton exchange membrane fuel cells (PEMFC); Synthesis (chemical); X ray diffraction analysis; COPROX reaction; Preferential oxidation of CO; Catalyst activity |
| Año: | 2008 |
| Volumen: | 33 |
| Número: | 4 |
| Página de inicio: | 1345 |
| Página de fin: | 1353 |
| DOI: | http://dx.doi.org/10.1016/j.ijhydene.2007.12.014 |
| Título revista: | International Journal of Hydrogen Energy |
| Título revista abreviado: | Int J Hydrogen Energy |
| ISSN: | 03603199 |
| CODEN: | IJHED |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03603199_v33_n4_p1345_Marino |
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Citas:
---------- APA ----------
Mariño, F., Baronetti, G., Laborde, M., Bion, N., Le Valant, A., Epron, F. & Duprez, D. (2008) . Optimized CuO-CeO2 catalysts for COPROX reaction. International Journal of Hydrogen Energy, 33(4), 1345-1353.http://dx.doi.org/10.1016/j.ijhydene.2007.12.014
---------- CHICAGO ----------
Mariño, F., Baronetti, G., Laborde, M., Bion, N., Le Valant, A., Epron, F., et al. "Optimized CuO-CeO2 catalysts for COPROX reaction" . International Journal of Hydrogen Energy 33, no. 4 (2008) : 1345-1353.http://dx.doi.org/10.1016/j.ijhydene.2007.12.014
---------- MLA ----------
Mariño, F., Baronetti, G., Laborde, M., Bion, N., Le Valant, A., Epron, F., et al. "Optimized CuO-CeO2 catalysts for COPROX reaction" . International Journal of Hydrogen Energy, vol. 33, no. 4, 2008, pp. 1345-1353.http://dx.doi.org/10.1016/j.ijhydene.2007.12.014
---------- VANCOUVER ----------
Mariño, F., Baronetti, G., Laborde, M., Bion, N., Le Valant, A., Epron, F., et al. Optimized CuO-CeO2 catalysts for COPROX reaction. Int J Hydrogen Energy. 2008;33(4):1345-1353.http://dx.doi.org/10.1016/j.ijhydene.2007.12.014
