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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。
Nanostructured lead titanate (PbTiO3) was synthesized by sol-gel technique using lead oxide and titanium butyrate as raw materials and lactic acid as solvent. The sol - gel, the formation of the gel, the bonding mode of the chemical bond and the properties of PbTiO3 nanocrystals were characterized. The experimental methods used are infrared spectroscopy, TG-DTA, X-ray diffraction and transmission electron microscopy. The experimental results show that using this method lead titanate crystallization temperature dropped to 362 ℃. Compared with the traditional synthesis method, the lead titanate obtained by the reaction at a temperature of 685 ° C is reduced by 320 ° C and the titanate obtained after burning at 420 ° C for 1 hour is analyzed by X-ray diffraction as a pure phase and analyzed by transmission electron microscopy. <60nm.