摘要
采用以氧化铅、丁酸钛为原料，乳酸为溶剂的溶胶一凝胶技术，合成了纳米级钛酸铅晶体（ＰｂＴｉＯ３）。对制备过程中溶胶、凝胶的形成、化学键的结合方式，ＰｂＴｉＯ３纳米晶的特性进行了表征。所采用的实验手段有红外光谱、热重一差热分析、Ｘ一射线衍射和透射电镜。实验结果说明采用该方法钛酸铅的晶化温度降到了３６２℃。比传统因相反应法合成温度６８５℃降低了３２０℃，且经过４２０℃灼烧１小时后获得的钛酸铅经Ｘ一射线衍射分析为纯相，通过透射电镜分析，其纳米粒子的粒径＜６０ｎｍ。
Lead titanate nanocrystals were derived by alcogel methods. by means of absorbtion the water on atomsphere, the solidification and glation were formed completely.The nanocrystals were characterized by transmission electron microscope (TEM) and Xray diffraction (RXD). The experiment demonstration as follows: multi-hydroxylic alcoholics could effectively cut down the synthesis temperature of PbTiO3 on the contrary the composition tempetature increased markedly with the alkyl. increased
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
1996年第S1期415-418,共4页
Chinese Journal of Scientific Instrument
关键词
钛酸铅
晶化温度
有机醇
lead titanate
crystal temperature
alcogel
