Preparation of La-0.Sr-9(0).Ga-1(0).Mg-8(0).O-2(2).(85) ultrafine powder by low temperature combustion synthesis

作者：Yao WH^*; Zhang ZT; Tang ZL; Luo SH

来源：Rare Metal Materials and Engineering, 2004, 33(4): 421-424.

• lanthanum gallate
• solid electrolyte
• low temperature combustion synthesis
• SOFC
• self-propagate

Low temperature combustion synthesis (LTCS) combines the advantage of solution-based processing with that of high temperature self-propagation. The process can be ignited at low temperature and is sustained by a strong exothermic reaction. As presently described the LTCS process was applied to directly synthesize La0.9Sr0.1Ga0.8Mg0.2O2.85 (LSGM1020) ultra-fine powder in nitrate-citric acid solution. The LSGM1020 powder prepared by this method has specific surface area as high as 120 m(2)/g. The effect of solution initial concentration and pH value on the properties of the final powder was investigated.

• 出版日期2004-4
• 单位清华大学