文档介绍：2013 年 5 月贵金金属 May 2013
第 34 卷第 2 期 Precious Metals Vol. 34, No. 2
纳米钯活化纳米钯活化液液液液的制备及其性质表征的制备及其性质表征
余翔 1,张念椿 2 *,刘彬云 2,王恒义 2
(1. 暨南大学测试中心,广州 510632;2. 广东东硕科技有限公司,广州 510288)
摘要:以氯化钯为原料,聚乙烯吡咯烷酮(PVP)为分散剂,聚乙二醇 400(PEG)为还原剂,反应温
度为 150℃,成功制备出纳米钯活化液。采用激光动态散射和透射电子显微镜对纳米钯进行了表征。
结果显示,在 PVP 分散剂的作用下,得到的纳米钯为球形、单晶、粒径为 30~50 nm,无其他的氧
化物存在。探讨了分散剂对合成纳米钯的影响,在还原剂 PEG 和分散剂 PVP 共同作用下,制备的
纳米钯粒径大小均一,无团聚现象。
关键词:物理化学;纳米钯;聚乙二醇 400;还原剂;分散剂;单晶
中图分类号: 文献标识码:A 文章编号:1004-0676(2013)02-0044-04
Preparation and Characterization of Nano-palladium Activator
YU Xiang1, ZHANG Nianchun2 *, LIU Binyun2, WANG Hengyi2
(1. Analytical and Testing Center, Jinan University, Guangzhou, 510632, China;
2. Guangdong Toneset Science & Technology Co. Ltd., Guangzhou, 510288, China)
Abstract: A nano-palladium activator was essfully prepared by the reaction of palladium chloride
with dispersing agent PVP (polyvinylpyrrolidone) and reducing agent PEG400 (polyethylene glycol) at
150℃. DLS (dynamic laser scattering) and TEM (transmission electron microscopy) were used to
characterize the nano-palladium. It showed that the obtained nano-palladium was spherical, single crystal
and diameter 30~50 nm due to the dispersant effect of PVP. Palladium oxide did not exist in it. The effects
of dispersants were discussed. Under the both effects of reducing agen