Surface Composition/Organization of Ionic Liquids with Au Nanoparticles Revealed by High-Sensitivity Low-Energy Ion Scattering

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• 作者：Alan Kauling ; G眉nter Ebeling ; Jonder Morais ; Ag铆lio P谩dua ; Thomas Grehl ; Hidde H. Brongersma ; Jairton Dupont
• 刊名：Langmuir
• 出版年：2013
• 出版时间：November 19, 2013
• 年：2013
• 卷：29
• 期：46
• 页码：14301-14306
• 全文大小：322K
• 年卷期：v.29,no.46(November 19, 2013)
• ISSN：1520-5827

文摘

High-sensitivity low-energy ion scattering (HS-LEIS) analysis was used to elucidate the outermost layer of both functionalized and non-functionalized imidazolium ionic liquids (ILs). The IL outermost layer is composed of all atoms of both cations and anions. The HS-LEIS analyses also allow for quantitative measurement of the thickness of IL overlayers on Au nanoparticles prepared by sputter deposition, which was shown to be a monolayer of ions, as predicted by density functional theory calculations.