摘要
应用微波方法合成了固相反应难于制备的Na_5YSi_4O_(12)纯相,讨论了微波合成条件对产物的影响.与溶胶-凝胶法相比,微波法反应速率快,选择性强,合成的样品具有特异的聚集态、缺陷和微结构,从而导致离子导电活化能下降.
Single phase Na_5YSi_4O_(12) which is difficult to be prepared by conventional solid state reaction, was synthesized by microwave radiation synthesis method. The relationship between synthesis conditions and the phases in products was discussed. A comparison was made of the properties of samples prepared by Sol-Gel method with those by microwave radiation synthesis method,respectively. Compared to conventional Sol-Gel method, the experimental procedure was much simplified and reaction time was shrtened when Na_5YSi_4O_(12) was prepared by microwave radiation synthesis method. The sample prepared by microwave method has a particular micro-structure,aggregating state and defect structures, which leads to the decrease of ionic conducting activation energy.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1996年第5期672-675,共4页
Chemical Journal of Chinese Universities
基金
国家自然科学基金
关键词
微波合成
离子导体
钠快离子导体
Microwave radiation synthesis
Na_5YSi_4O_(12)
Ionic conductor