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Updated: Jan 26, 2026

Writing and Low-Temperature Characterization of Oxide Nanostructures
Published on: July 18, 2014
Nanostructured Ceria-Praseodymium and Ceria-Terbium Mixed Oxides: Relationship Between Structural Change and
Ming Guo1, Wenyan Yin2, Feng Zhao2
1Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, China.
Abstract:
The structural and textural properties of the Ce0.9Pr0.1O2-δ (CP) and Ce0.9Pr0.1O2-δ (CT) solid solutions were investigated by X-ray diffraction (XRD), BET surface area, transmission electron microscopy (TEM-HRTEM), UV-vis diffuse reflectance spectroscopy (UV-vis DRS), Raman spectra, and X-ray photoelectron spectroscopy (XPS). The redox recoverability and catalytic activity were analyzed by temperature-programmed reduction (TPR) and oxidation reaction using carbon monoxide as a probe molecule. It was found that the CP solid solution exhibited better structural thermal stability, oxygen storage/release capacity, as well as redox ability than that of CT solid solution, since that the microstructure and oxygen vacancy concentration of CP sample under actual using process could recover to its initial status more easily in oxygen, even at room temperature. Therefore, the CP sample presented better CO oxidation activity compared with that of CT solid solution.
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