溶剂热法制备纳米Pb(Zr_(0.52)Ti_(0.48))O_3粉体  

Solvothermal Synthesis of Nanocrystalline Pb(Zr_(0.52)Ti_(0.48))O_3 Powders

作　　者：贾金洁[1] 刘晓林[1] 刘扬[1] 陈建峰[1] 

机构地区：[1]北京化工大学纳米材料先进制备技术与应用科学教育部重点实验室,北京100029

出　　处：《稀有金属材料与工程》2007年第A01期131-133,共3页Rare Metal Materials and Engineering

基　　金："863"专项课题项目(2003AA302760)

摘　　要：以硝酸铅、氧氯化锆、四氯化钛、氢氧化钾和氨水为原料,以乙醇和水的混合液为溶剂,采用溶剂热法合成了纳米Pb(Zr0.52Ti0.48)O3粉体。通过XRD和TEM对粉体进行了表征,并研究了醇水比(Vethanol/Vwater)和温度对粉体物相和粒径的影响。研究结果表明:在180℃、醇水比1:1以及KOH为2mol/L的条件下,可以制备粒径约为10nm的PZT粉体;适量乙醇的加入有利于合成纳米PZT粉体并降低生成PZT所需的温度。Nanocrystalline Pb（Zr0.52Ti0.48）O3（PZT）powders have been synthesized by solvothermal process, in which a mixed solvent of ethanol and water was used as reactive medium and Pb（NO3）2, ZrOCl2·8H2O, TiCl4, KOH and NH3·H2O were used as reactants. The powders were characterized by means of X-ray diffraction and transmission electron microscopy （TEM）. The effects of Vethanol/Vwater and temperature on powders＇ morphology and particle size were studied. The results showed that PZT powders with an average particle size of 10 nm can be obtained at 180 ℃ with the alkaline concentration of 2 mol/L and Vethanol/Vwater of 1. Appropriate amount of ethanol is advantageous to produce nanocrystalline PZT powders and decrease the required temperature.

关 键 词：溶剂热 混合溶剂 PZT粉体 钙钛矿结构 

分 类 号：TM282[一般工业技术—材料科学与工程]