Synthesis and Microstructural Characterization of Ce1−xTbxO2− (0 ≤ x ≤ 1) Nano-Powders
Ce1−xTbxO2− nano-powders have been successfully synthesized by using the ammonium carbonate coprecipitation method in an entire compositional range of 0 ≤ x ≤ 1 by adjusting the preparation conditions. Studies of X-ray diffraction (XRD) and transmission electron microscopy (TEM) showed that the powders with different compositions mainly consist of fluorite structure. In addition, a small amount of secondary phase was observed in the powders with x ≥ 0.7. TEM observation indicated that the secondary phase could have a superstructure formed by a structural modulation of the fluorite structure.
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Document Type: Research Article
Publication date: 2007-07-01
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