Synthesis of stable oil dispersions of silver nanoparticles
Hydrophobic silver nanoparticles have been carried out by use of ascorbic acid in cyclohexylamine and aqueous medium.Nanosilver can be effectively coated with oleic acid and possesses oil-soluble property.Oleic acid as an extractant is also effective at stabilizing particles of similar size in an oil phase when the AgNO3 is reduced in a coexisting aqueous phase.Stable spherical silver nanoparticles 15~25 nm in diameter with a well-crystallized structure were obtained at 120 ℃.The thermal stability of surface-coated silver prepared in cyclohexylamine solution was monitored by UV-vis spectral analysis.
silver nanoparticles hydrophobic surface capped
Dan Li
Department of Chemistry and Chemical Engineering,Weifang University,Weifang,China
国际会议
大理
英文
73-78
2011-08-18(万方平台首次上网日期,不代表论文的发表时间)