RT journal article
T1 Preferential oxidation of CO in excess H2 over CuO/CeO2 catalysts:Characterization and performance as a function of the exposed face present in the CeO2 support
A1 Gamarra, D.
A1 López Cámara, A.
A1 Rasmussen, S.B.
A1 Chinchilla, L.E.
A1 Hungría Hernández, Ana Belén
A1 Munuera, G.
A1 Gyorffy, N.
A1 Schay, Z.
A1 Cortés Corberán, V.
A1 Conesa, J.C.
A1 Martínez-Arias, A.
A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica
K1 Nanostructured CuO-CeO2 catalysts
K1 CO-PROX
K1 HREM
K1 EPR
K1 TPR
K1 Opernado-DRIFTS
K1 XPS
K1 XRD
AB A series of oxidised copper-cerium nanostructured catalysts prepared by impregnation of copper overceria supports synthesized by different methods (hydrothermal with varying preparation parameters,microemulsion/precipitation), in order to achieve different specific morphologies (nanocubes, nanorodsand nanospheres), have been examined with respect to their catalytic properties for preferential oxidationof CO in excess H2 (CO-PROX). The catalysts have been characterized in detail by XRD, Raman, SBETmeasurement, HREM, XPS, TPR and EPR, which allows establishing a model of structural characteristicsof the catalysts. The characterization results have been correlated with analysis of CO-PROX catalyticproperties by means of catalytic activity measurements complemented by operando-DRIFTS. Structuraldependence of the CO oxidation reaction on the dispersed copper oxide entities as a function of theexposed face present at the surface of the different ceria supports is revealed. An important overallenhancement of the CO-PROX performance is detected for the sample supported on ceria nanocubeswhich is proposed to be a consequence of the interaction between copper oxide and (1 0 0) faces of theceria support.
PB Elsevier
SN 0926-3373
YR 2012
FD 2012-11-19T00:00:00Z
LK http://hdl.handle.net/10498/15868
UL http://hdl.handle.net/10498/15868
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 07-nov-2026