Issue 71, 2013
From the journal:

Chemical Communications

Thickness-dependent molecular arrangement and topography of ultrathin ionic liquid films on a silica surface†

Xiao Gong,a   Scott Frankert,a   Yongjin Wanga  and  Lei Li*a  

* Corresponding authors

a Department of Chemical and Petroleum Engineering, University of Pittsburgh, 1237 Benedum Hall, 3700 O'Hara Street, Pittsburgh, Pennsylvania 15261, USA
E-mail: lel55@pitt.edu

Abstract

The molecular arrangement and topography of ultrathin ionic liquids (ILs) on a silicon wafer have been studied by AFM and ARXPS, respectively. The results indicate a transition from an “anion–cation” layered (smooth) structure to a “drop-on-layer”/“sponge” (rough) structure when the film gets thicker, which can be attributed to the competition between solid/IL attraction and anion–cation cohesion.

Graphical abstract: Thickness-dependent molecular arrangement and topography of ultrathin ionic liquid films on a silica surface

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Article information

DOI
https://doi.org/10.1039/C3CC43392G
Article type
Communication
Submitted
07 May 2013
Accepted
03 Jul 2013
First published
03 Jul 2013

Chem. Commun., 2013,49, 7803-7805

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Thickness-dependent molecular arrangement and topography of ultrathin ionic liquid films on a silica surface

X. Gong, S. Frankert, Y. Wang and L. Li, Chem. Commun., 2013, 49, 7803 DOI: 10.1039/C3CC43392G

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