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Dr. Qingmin Ji, Prof. Dr. Itaru Honma, Dr. Seung-Min Paek, Misaho Akada, Dr. Jonathan P. Hill, Dr. Ajayan Vinu and Prof. Dr. Katsuhiko Ariga Layer-by-Layer Films of Graphene and Ionic Liquids for Highly Selective Gas Sensing Angewandte Chemie International Edition 49

Version of Record online: 12 NOV 2010 | DOI: 10.1002/anie.201004929

Thumbnail image of graphical abstract

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.

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