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

• 作 者: Bing-Hui Wu Hua-Yan Yang Hua-Qi Huang Guang-Xu Chen Nan-Feng Zheng
• 机 构: State Key Laboratory for Physical Chemistry of Solid Surfaces and Department of Chemistry,College of
• 出 处: Chinese Chemical Letters
• 发表日期: 2013年06期
• 关键词: Solvent effect Au nanoparticles Amine Monodispersity

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.

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 (eg, n-hexane, n-octane, 1-octadecylene, benzene, and toluene) was used as the solvent, high-quality monodisperse Au nanoparticles with tunable sizes were obtained. obtained when tetralin, chloroform or cyclohexane was used as the solvent. This solvent allows the controlled synthesis of monodisperse Au nanoparticles with tunable size of 3-10 nm.