First stage of thermal aging under oxidizing conditions of a Ce 0.62Zr0.38O2 mixed oxide with an ordered cationic sublattice: A chemical, nanostructural, and nanoanalytical study. Yeste, M., Hernández-Garrido, J., Trasobares, S., Bernal, S., Blanco, G., Calvino, J., Pérez-Omil, J., & Pintado, J. Chemistry of Materials, 20(15):5107–5113, Departamento de Ciencia de Los Materiales e Ingenieria Metalurgica y Quimica Inorganica, Facultad de Ciencias, Campus Rio San Pedro, Puerto Real, E-11510-Cádiz, Spain, 2008.
First stage of thermal aging under oxidizing conditions of a Ce 0.62Zr0.38O2 mixed oxide with an ordered cationic sublattice: A chemical, nanostructural, and nanoanalytical study [link]Paper  abstract   bibtex   
After being heated in a flow of 5% O2/He, at 1073 or 1123 K for 30 min, a Ce0.62Zr0.38O2 sample showing an ordered cationic sublattice had very subtle surface nanostructural changes induced on it. In parallel with them, a significant loss of low-temperature (77 < 773 K) oxygen storage capacity (OSC), with no modification of its high-temperature (T > 973 K) redox response, was observed. These nanostructural and chemical features characterize the very first stage of the process leading to the destruction of the ordered Ce-Zr sublattice, a structural phenomenon playing a key role in the control of redox behavior of ceria-zirconia mixed oxides. The reported results, including OSC, hydrogen chemisorption, and nanostructural and nanoanalytical data, lend further support to a model providing a comprehensive interpretation of the complex relationship linking thermal aging conditions, nanostructural properties, surface chemistry, and redox behavior in these materials. © 2008 American Chemical Society.
@article{Yeste2008,
abstract = {After being heated in a flow of 5% O2/He, at 1073 or 1123 K for 30 min, a Ce0.62Zr0.38O2 sample showing an ordered cationic sublattice had very subtle surface nanostructural changes induced on it. In parallel with them, a significant loss of low-temperature (77 < 773 K) oxygen storage capacity (OSC), with no modification of its high-temperature (T > 973 K) redox response, was observed. These nanostructural and chemical features characterize the very first stage of the process leading to the destruction of the ordered Ce-Zr sublattice, a structural phenomenon playing a key role in the control of redox behavior of ceria-zirconia mixed oxides. The reported results, including OSC, hydrogen chemisorption, and nanostructural and nanoanalytical data, lend further support to a model providing a comprehensive interpretation of the complex relationship linking thermal aging conditions, nanostructural properties, surface chemistry, and redox behavior in these materials. © 2008 American Chemical Society.},
address = {Departamento de Ciencia de Los Materiales e Ingenieria Metalurgica y Quimica Inorganica, Facultad de Ciencias, Campus Rio San Pedro, Puerto Real, E-11510-C\'{a}diz, Spain},
annote = {Cited By (since 1996): 18

        
Export Date: 15 January 2013

        
Source: Scopus

        
CODEN: CMATE

        
doi: 10.1021/cm800928p

        
Language of Original Document: English

        
Correspondence Address: Bernal, S.; Departamento de Ciencia de Los Materiales e Ingenieria Metalurgica y Quimica Inorganica, Facultad de Ciencias, Campus Rio San Pedro, Puerto Real, E-11510-C\'{a}diz, Spain; email: serafin.bernal@uca.es

        
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author = {Yeste, MP. and Hern\'{a}ndez-Garrido, JC. and Trasobares, S. and Bernal, S. and Blanco, G. and Calvino, JJ. and P\'{e}rez-Omil, JA. and Pintado, JM.},
issn = {08974756 (ISSN)},
journal = {Chemistry of Materials},
keywords = {Cerium,Cerium compounds,Oxidizing conditions,Thermal aging},
number = {15},
pages = {5107--5113},
title = {{First stage of thermal aging under oxidizing conditions of a Ce 0.62Zr0.38O2 mixed oxide with an ordered cationic sublattice: A chemical, nanostructural, and nanoanalytical study}},
url = {https://www.scopus.com/inward/record.url?eid=2-s2.0-50249129711&partnerID=40&md5=b8ce291c2878bc5f863b6cce81f28826},
volume = {20},
year = {2008}
}

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