摘要
研究了在微乳液中进行氧化还原反应制备超细银粉的方法 .用H2 O2 作还原剂 ,在碱性条件下采用不同乳化剂 ,可得到不同粒径的超细银粉 .经透射电镜、X -射线衍射和扫描电镜分析表明 ,在聚乙烯醇 (PVA)作乳化剂的乳液体系 ,得到银粉粒径为 6～ 15 μm ;而在聚乙二醇辛基苯基醚 (OP)作乳化剂的微乳液中 ,可得到 10～ 2
The preparation methods of ultrafine silver powder by reaction of oxidation-reduction in microemulsion were investigated. The ultrafine silver powders can be prepared with H 2O 2 as reducing agent. The size of silver powder was determined by TEM?WAXD and SEM.The results show that the diameter of silver powder is about 6～15 μm in emulsion with PVA as emulsifying agent and the ultrafine silver powders with 10～20 nm diameter can be gained in microemulsion with OP as emulsifying agent.
出处
《湘潭大学自然科学学报》
CAS
CSCD
2001年第4期60-62,共3页
Natural Science Journal of Xiangtan University
基金
湖南省自然科学基金资助项目 (0 0JJY2 0 12 )
关键词
微乳液法
氧化还原反应
超细银粉
microemulsion, oxidation-reduction, ultrafine silver powder
作者简介
谭松庭(1961-),男,湖南隆回县人,博士,副教授.
