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Jobbágy, M.; Mariño, F.; Schönbrod, B.; Baronetti, G.; Laborde, M. "Synthesis of copper-promoted CeO2 catalysts" (2006) Chemistry of Materials. 18(7):1945-1950
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Abstract:

The urea method is explored for a high-yield preparation of CuO-CeO 2 catalysts precursors. Solutions containing urea, Ce(NO 3)3, and Cu(NO3)3 were aged at 363 K for 5 h, achieving a quantitative coprecipitation in the form of amorphous Cu(II)-Ce(III) basic carbonates, with Cu(II) contents up to 40%. The mixed precursors were characterized by PXRD, SEM, EDS, FTIR, and TG. Upon mild thermal treatment under air atmosphere, i.e., T = 723 K, powders were readily converted into CuO-promoted nanometric ceria. No Tenorite (CuO) segregation is observed after annealing at 873 K. The binary oxides were characterized by means of temperature-programmed reduction (TPR) and a test reaction for the preferential oxidation of carbon monoxide (CO-PROX), achieving the best performance with samples containing around 20% in copper atoms. © 2006 American Chemical Society.

Registro:

Documento: Artículo
Título:Synthesis of copper-promoted CeO2 catalysts
Autor:Jobbágy, M.; Mariño, F.; Schönbrod, B.; Baronetti, G.; Laborde, M.
Filiación:INQUIMAE, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, C1428EHA - Buenos Aires, Argentina
Laboratorio de Procesos Cataliticos, Facultad de Ingeniería, Ciudad Universitaria, C1428EHA - Buenos Aires, Argentina
Palabras clave:Carbonates; Copper oxides; Heat treatment; Scanning electron microscopy; Solutions; Binary oxides; Coprecipitation; Temperature-programmed reduction (TPR); Cerium compounds
Año:2006
Volumen:18
Número:7
Página de inicio:1945
Página de fin:1950
DOI: http://dx.doi.org/10.1021/cm052437h
Título revista:Chemistry of Materials
Título revista abreviado:Chem. Mater.
ISSN:08974756
CODEN:CMATE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08974756_v18_n7_p1945_Jobbagy

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Citas:

---------- APA ----------
Jobbágy, M., Mariño, F., Schönbrod, B., Baronetti, G. & Laborde, M. (2006) . Synthesis of copper-promoted CeO2 catalysts. Chemistry of Materials, 18(7), 1945-1950.
http://dx.doi.org/10.1021/cm052437h
---------- CHICAGO ----------
Jobbágy, M., Mariño, F., Schönbrod, B., Baronetti, G., Laborde, M. "Synthesis of copper-promoted CeO2 catalysts" . Chemistry of Materials 18, no. 7 (2006) : 1945-1950.
http://dx.doi.org/10.1021/cm052437h
---------- MLA ----------
Jobbágy, M., Mariño, F., Schönbrod, B., Baronetti, G., Laborde, M. "Synthesis of copper-promoted CeO2 catalysts" . Chemistry of Materials, vol. 18, no. 7, 2006, pp. 1945-1950.
http://dx.doi.org/10.1021/cm052437h
---------- VANCOUVER ----------
Jobbágy, M., Mariño, F., Schönbrod, B., Baronetti, G., Laborde, M. Synthesis of copper-promoted CeO2 catalysts. Chem. Mater. 2006;18(7):1945-1950.
http://dx.doi.org/10.1021/cm052437h