Ag^+-β″-氧化铝的合成与热力学稳定性研究

Sythesis and Study on the Stability of Ag^+-β″-Alumina

采用高温固相反应制备了Na+ β″ 氧化铝 ,利用熔盐离子交换法进行Ag+交换形成Ag+ β″ 氧化铝 ,并研究了其热稳定性 .X射线衍射和扫描电镜分析中发现 ,在5 0 0℃以上有分解现象且随温度升高更加明显 .

Na β″ Al 2O 3 was prepared by solid state reaction. After ion exchanging to Ag + β″ Al 2O 3, its thermal stability was studied. XRD and SEM observation indicate that it decomposes at above 500 ℃ . Its decomposition behavior was also observed with the electrochemical method.