摘要
分别采用固相反应法、凝胶燃烧法分别制备了镓酸镧基固体电解质粉体(La0.9Sr0.1Ga0.8Mg0.2O3-δ),讨论了煅烧温度对粉体物相的影响,比较了两种方法所制备粉体的特点,X射线衍射分析表明,固相反应法制备需经1250℃下预烧15h,1500℃下煅烧24h,得到La0.9Sr0.1Ga0.8Mg0.2O3-δ粉体颗粒尺寸在1μm,而凝胶燃烧法仅需在1400℃煅烧10h可以合成La0.9Sr0.1Ga0.8Mg0.2O3-δ粉体,粉体颗粒尺寸150nm。
The electrolyte La0.9Sr0.1Ga0.8 Mg0.2O3-δ (LSGM) was prepared by the method of solid state reaction and gel-combustion method respectively, X ray diffraction was used to characterize the phase transition with the calcination temperature. The result showed that the single phase LSGM was formed at 1400°C with l0 h by gel-combustion method with particle size 150 nm and phase LSGM was formed at 1500°C with 24 h by solid state reaction with particle size 1 μm.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2004年第4期448-449,共2页
Journal of Functional Materials
基金
863计划新材料领域纳米专项项目编号2003AA302440
关键词
La0.9Sr0.1Ga0.8Mg0.2O3-δ
固相反应法
凝胶燃烧法
Calcination
Combustion
Gallium compounds
Gels
Lanthanum compounds
Magnesium compounds
Oxides
Particle size analysis
Phase transitions
Solid oxide fuel cells
Strontium compounds
Temperature control
X ray diffraction analysis
