节点文献
液相还原法制备纳米铜粉初探
Nanocrystalline Copper Powder Prepared by Reduction in Acqueous Solution
【摘要】 采用KBH4液相还原CuSO4,并加入KOH、络合剂EDTA和分散剂PVP,制得了纳米级的铜粉,通过调整反应物的浓度,可以部分消除Cu2O等杂质.制备的纳米铜粉呈球形,粒径约在50~250nm范围,但还存在一定程度的团聚,需对分散剂作进一步研究.
【Abstract】 The nanocrystalline copper powder is prepared,using KBH4,CuSO4,KOH,EDTA and PVP,by reduction in acqueous solution.The powder is spherical and its diameter ranges from 50 nm to 250 nm.The impurity such as Cu2O can partly be removed by adjusting the content of reactant.Some reunion exists in made copper powder.The further research is needed about dispersing agent.
【关键词】 纳米;
铜粉;
液相还原法;
制备;
【Key words】 nanocrystalline; copper powder; reduction in acqueous solution; preparation;
【Key words】 nanocrystalline; copper powder; reduction in acqueous solution; preparation;
【基金】 广州市纳米专项基金资助项目(2001-212401)
- 【文献出处】 广东工业大学学报 ,Journal of Guangdong University of Technology , 编辑部邮箱 ,2003年01期
- 【分类号】TB383
- 【被引频次】15
- 【下载频次】384