强酸性条件下合成PbTiO_3超细粉末的初探

Preparatioin of PbTiO3 Uetra Fine Powder Under Strog Acid Conditon

强酸性条件下合成ＰｂＴｉＯ＿３超细粉末的初探余大书，徐崇泉，郭慎满，董相庭（哈尔滨工业大学应用化学系），（长春应用化学研究所）制备ＰＴ超细粉末，目前国内外有些报道，主要集中在用ＳＯＩ－ＧＥＬ法，该方法限制了反应原料需要用易于水解又比较昂贵的醇盐，为此...

Abstract Preparaiton of PbTiO3 ultrafine Powders was Studied On the Strong acidCondition.The coprecipitated powders were prepared from a solution Containing a1:1 motlrrate of Pb(OAC)2 TiCl4 and 10:1 molar rate of H2O2: TiCl4 and 6:1 molar rate of citric acid:TiCl4.The Solution containing TiCl4、H2O2、HNO3 complexes was slowly added to Pb(OAC)2alcohol Solution under strong conditions that induced precipitation when water was slowlyvaporized.The precipitated PbTiO3 Powder was Calcined at 600℃ for 1h.The x-ray diffrac-tion indicated that the calcilied powder consisted of pyrochlore phase.