This work was supported in part by WPI Initiative, MEXT, JST, CREST, and JSPS. The authors thank Dr. Y. Nemoto for high-resolution TEM measurements.
Layer-by-Layer Films of Graphene and Ionic Liquids for Highly Selective Gas Sensing†
Article first published online: 12 NOV 2010
Copyright © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Angewandte Chemie International Edition
Volume 49, Issue 50, pages 9737–9739, December 10, 2010
How to Cite
Ji, Q., Honma, I., Paek, S.-M., Akada, M., Hill, J. P., Vinu, A. and Ariga, K. (2010), Layer-by-Layer Films of Graphene and Ionic Liquids for Highly Selective Gas Sensing. Angew. Chem. Int. Ed., 49: 9737–9739. doi: 10.1002/anie.201004929
- Issue published online: 7 DEC 2010
- Article first published online: 12 NOV 2010
- Manuscript Received: 7 AUG 2010
- ionic liquids;
- layered compounds;
- layer-by-layer assembly;
The best of both worlds: Graphene/ionic liquid (G–IL) layered films were obtained by direct reduction of graphene oxide in the presence of ionic liquids, followed by reassembly through electrostatic layer-by-layer (LbL) adsorption (see picture). The layer spacing of the graphene sheets is regularly expanded upon insertion of ionic liquid molecules (green discs). Selective sensing of aromatic compounds (red spheres) by using the G–IL LbL films was also achieved.