The effect of ceria on the dynamics of CuO-Cu2O redox transformation: CuO-Cu2O hysteresis on ceria

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dc.contributor	Universitat Politècnica de Catalunya. Institut de Tècniques Energètiques
dc.contributor	Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions
dc.contributor.author	Colussi, Sara
dc.contributor.author	Amoroso, Francesco
dc.contributor.author	Katta, Lakshmi
dc.contributor.author	Llorca Piqué, Jordi
dc.contributor.author	Trovarelli, Alessandro
dc.date	2014-06-01
dc.identifier.citation	Colussi, S. [et al.]. The effect of ceria on the dynamics of CuO-Cu2O redox transformation: CuO-Cu2O hysteresis on ceria. "Catalysis letters", 01 Juny 2014, vol. 144, núm. 6, p. 1023-1030.
dc.identifier.citation	1011-372X
dc.identifier.citation	10.1007/s10562-014-1237-1
dc.identifier.uri	http://hdl.handle.net/2117/23604
dc.language.iso	eng
dc.relation	http://link.springer.com/article/10.1007%2Fs10562-014-1237-1
dc.rights	Attribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject	Àrees temàtiques de la UPC::Enginyeria dels materials
dc.subject	Àrees temàtiques de la UPC::Enginyeria química
dc.subject	Hysteresis
dc.subject	Cerium
dc.subject	Copper
dc.subject	Ceria
dc.subject	Copper-ceria interaction
dc.subject	CeO2
dc.subject	TPO
dc.subject	Pd-PdO
dc.subject	CuO-Cu2O hysteresis
dc.subject	Histèresi
dc.subject	Ceri
dc.title	The effect of ceria on the dynamics of CuO-Cu2O redox transformation: CuO-Cu2O hysteresis on ceria
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/article
dc.description.abstract	CuO supported on ceria and alumina is prepared by incipient wetness impregnation and its redox behavior is investigated by means of XRD, XPS and TPO experiments. CuO on ZrO2 and on ceria-zirconia are also synthesized for comparison. The support plays a major role on the dynamics of CuO-Cu2O transformation. On Al2O3 the formation of CuAl2O4 inhibits any oxygen exchange during TPO experiments, while on ceria, zirconia and ceria-zirconia supported catalysts CuO decomposition and re-oxidation take place with a hysteresis similar to that observed for Pd-PdO transformation. On CeO2 the hysteresis is significantly reduced, indicating a strong effect of ceria on CuO-Cu2O redox cycle.

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