Self-Assembling Imidazolium-Based Ionic Liquid in Rigid Nanopores Induces Anomalous CO2 Adsorption at Low Pressure
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- 作者：Shunsuke Tanaka ; Koji Kida ; Haruki Fujimoto ; Takashi Makino ; Yoshikazu Miyake
- 刊名：Langmuir
- 出版年：2011
- 出版时间：July 5, 2011
- 年：2011
- 卷：27
- 期：13
- 页码：7991-7995
- 全文大小：797K
- 年卷期：v.27,no.13(July 5, 2011)
- ISSN：1520-5827
文摘
An alkylimidazolium-based long-chain ionic liquid (LCIL) was immobilized in silica nanopores via a supramolecular assembly approach. To discuss the characteristic features of LCIL in a confined nanospace, except for the characteristics of the host materials, we have prepared the silica host with monodisperse morphology and a nanostructured system to immobilize LCIL. The nanostructure is composed of three distinct regions: the silica framework, the hydrophobic interior of the alkyl chains, and the organic鈥搃norganic ionic interface. Anomalous CO2 adsorption sites were found to be well-ordered locations on the ionic interface fabricated by the 蟺鈥撓€-stacked imidazolium heads containing inorganic anions and polar silica surfaces.