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, J., Trasobares, S., Bernal, S., Blanco, G., Calvino, J., Pérez-Omil, J., & Pintado, J. Chemistry of Materials, 20(15):5107-5113, 2008. cited By 23
Paper doi 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{Yeste20085107,
author={Yeste, M.P. and Hernández, J.C. and Trasobares, S. and Bernal, S. and Blanco, G. and Calvino, J.J. and Pérez-Omil, J.A. and Pintado, J.M.},
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},
journal={Chemistry of Materials},
year={2008},
volume={20},
number={15},
pages={5107-5113},
doi={10.1021/cm800928p},
note={cited By 23},
url={https://www.scopus.com/inward/record.url?eid=2-s2.0-50249129711&partnerID=40&md5=aef34657801f377302173c753861ea63},
affiliation={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},
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.},
document_type={Article},
source={Scopus},
}
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