Synthesis and microstructural characterization of Ce1-xTb(x)O2-delta (0 < or = x < or = 1) nano-powders.
Ce1-xTb(x)O2-delta nano-powders have been successfully synthesized by using the ammonium carbonate coprecipitation method in an entire compositional range of 0 < or = x < or = 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 > or = 0.7. TEM observation indicated that the secondary phase could have a superstructure formed by a structural modulation of the fluorite structure.
Fuel Cell Materials Center, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.
Fei
F
Ye
Toshiyuki
T
Mori
Ding Rong
DR
Ou
Jin
J
Zou
John
J
Drennan
D002563:Cerium / Q000737:chemistry*; D003460:Crystallization / Q000379:methods*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000379:methods*; D010087:Oxides / Q000737:chemistry; D010316:Particle Size; D011208:Powders; D013499:Surface Properties; D013725:Terbium / Q000737:chemistry
D046911:Macromolecular Substances; D010087:Oxides; D011208:Powders; D013725:Terbium; D002563:Cerium