Electrical Properties of Y-Doped Ceria Nanoparticles and Nanorods with High Specific Surface Area

被引：1
|
作者：
Wang Zhen-Ping [1 ]
Liu Xiao-Fei [2 ]
Li Guo-Xiang [1 ]
Chen Xiao-Xia [1 ]
机构：
[1] Inner Mongolia Univ Sci & Technol, Sch Chem & Chem Engn, Baotou 014010, Inner Mongolia, Peoples R China
[2] Inner Mongolia Inst Metrol & Testing, Hohhot 010020, Peoples R China
来源：
CHINESE JOURNAL OF INORGANIC CHEMISTRY | 2013年 / 29卷 / 01期
关键词：
oxide; nanostructures; high surface area; electrical properties; FACILE ALCOHOTHERMAL SYNTHESIS; IMPEDANCE SPECTROSCOPY; NANOPOWDERS;
D O I：
10.3969/j.issn.1001-4861.2013.00.005
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Large-scaled uniform Y-doped ceria nanoparticles and nanorods were synthesized via room-temperature aging and hydrothermal treatments of high-temperature precipitates, respectively. The influence of Y content and morphology of the Y-doped ceria powders on the solid solution properties was studied. The specific surface areas (S-BET) of both the nanoparticles and nanorods were greatly enhanced by Y-doping, and the highest S-BET was 197 m(2).g(-1) in 30 mol% Y-doped ceria nanoparticles. Moreover, the as-prepared powders could be easily sintered and densified, and the corresponding electrolyte possesses good electrical properties, Y0.3Ce0.7O1.85 nanoparticles electrolyte has a maximum total electrical conductivity (4.32 S.m(-1)) and minimum apparent activation energy (0.81 eV) at 850 degrees C.
引用
收藏
页码：206 / 212
页数：7
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