碳酸铅纳米粉体的制备及其表征  

Preparation and Characterization of PbCO_3 Nano-sized Particles

作　　者：李青[1] 姜标[1] 王万军[1] 唐松青[1] 

机构地区：[1]中国科学院上海有机化学研究所,上海200032

出　　处：《中国粉体技术》2005年第6期12-13,共2页China Powder Science and Technology

基　　金：国家"十五"攻关项目;编号:2001A31307

摘　　要：在溶液结晶体系中加入适当的添加剂可改变晶体的生长环境,影响晶体的生长、团聚行为,从而得到理想的晶形及晶粒尺寸。本研究在化学沉淀法制备碳酸铅的反应体系中加入适量表面活性剂,通过表面活性剂对晶粒生长和团聚的抑制作用,制备了疏松的碳酸铅纳米粉体。XRD和TEM分析表明,反应体系中加入表面活性剂后,制备的碳酸铅纳米粉体的晶形发生了改变,纳米碳酸铅颗粒呈球形,粒度均匀,为60 nm左右。Crystallization from solution is a complex multi-phase transfer process of heat and mass. Ideal crystal morphology and crystal size may be obtained by putting some additives into the liquid reaction system. PbCO3 nano-sized particles were prepared by modified chemical precipitation with surfactant added into the reaction system. It was found by XP.D and TEM that the crystal morphology of the PbCO3 nano-sized particles was remarkably changed and the particles were consisted of uniform spherical particles 60 nm in size.

关 键 词：化学沉淀法 表面活性剂 碳酸铅 纳米粉体 

分 类 号：TB383[一般工业技术—材料科学与工程]