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https://doi.org/10.1023/A:1012666128812

has been cited by the following article:

• TITLE: Temperature-Programmed Reduction and Dispersive X-Ray Absorption Spectroscopy Studies of CeO2-Based Nanopowders for Intermediate-Temperature Solid-Oxide Fuel Cell Anodes

  AUTHORS: Marina S. Bellora, Joaquín Sacanell, Cristián Huck-Iriart, Analía L. Soldati, Susana A. Larrondo, Diego G. Lamas

  KEYWORDS: Crystallite Size, CeO2-Based Nanomaterials, Sm2O3

  JOURNAL NAME: Materials Sciences and Applications, Vol.10 No.10, October 17, 2019

  ABSTRACT: In this work, we study the influence of the average crystallite size and dopant oxide on the reducibility of CeO2-based nanomaterials. Samples were prepared from commercial Gd2O3-, Sm2O3- and Y2O3-doped CeO2 powders by calcination at different temperatures ranging between 400°C and 900°C and characterized by X-ray powder diffraction, transmission electron microscopy and BET specific surface area. The reducibility of the samples was analyzed by temperature-programmed reduction and in situ dispersive X-ray absorption spectroscopy techniques. Our results clearly demonstrate that samples treated at lower temperatures, of smallest average crystallite size and highest specific surface areas, exhibit the best performance, while Gd2O3-doped ceria materials display higher reducibility than Sm2O3- and Y2O3-doped CeO2.