Solvent effect on the synthesis of monodisperse amine-capped Au nanoparticles

• Published in: Chinese chemical letters Vol. 24; no. 6; pp. 457 - 462
• Main Authors: Wu, Bing-Hui, Yang, Hua-Yan, Huang, Hua-Qi, Chen, Guang-Xu, Zheng, Nan-Feng
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01-06-2013; State Key Laboratory for Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
• Subjects: Amine; Au nanoparticles; Au纳米粒子; Monodispersity; Solvent effect; 单分散; 控制合成; 有机溶剂; 溶剂效应; 胺; 金纳米粒子; 金纳米颗粒; Solvent effect; Monodispersity; Au nanoparticles; Amine
• ISSN: 1001-8417; 1878-5964
• DOI: 10.1016/j.cclet.2013.03.054

A remarkable solvent effect in a single-phase synthesis of monodisperse amine-capped Au nanoparticles is demonstrated.Oleylamine-capped Au nanoparticles were prepared via the reduction of HAuCU by an amine-borane complex in the presence of oleylamine in an organic solvent.When linear or planar hydrocarbon（e.g.,n-hexane,n-octane,1-octadecylene,benzene,and toluene） was used as the solvent, high-quality monodisperse Au nanoparticles with tunable sizes were obtained.However,Au nanoparticles with poor size dispersity were obtained when tetralin,chloroform or cyclohexane was used as the solvent.The revealed solvent effect allows the controlled synthesis of monodisperse Au nanoparticles with tunable size of 3-10 nm.