Coexistence of Liquid and Solid Phases of Bmim-PF6 Ionic Liquid on Mica Surfaces at Room Temperature
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- 作者：Yaodong Liu ; Yi Zhang ; Guozhong Wu ; and Jun Hu
- 刊名：Journal of the American Chemical Society
- 出版年：2006
- 出版时间：June 14, 2006
- 年：2006
- 卷：128
- 期：23
- 页码：7456 - 7457
- 全文大小：170K
- 年卷期：v.128,no.23(June 14, 2006)
- ISSN：1520-5126
文摘
In this communication, we report the coexistence of liquid and solid phases of room temperature ionic liquid (IL) [Bmim][PF6] on mica surfaces, observed by tapping mode atomic force microscopy (AFM) in air. Multilayers as well as drop-on-the-layer structures of the ionic liquid are revealed. The solid layers were very stable, and their orientations were affected by the mica lattice, indicating that the ionic liquid undergoes a template-induced ordering process. These results are helpful for advancing the understanding of interfacial structures of ILs on solid surfaces, the analogous structural patterns in both of its solid and liquid phases, and its heterogeneity.