Layer-by-layer films of graphene and ionic liquids for highly selective gas sensing

Qingmin Ji; Itaru Honma; Seung Min Paek; Misaho Akada; Jonathan P. Hill; Ajayan Vinu; Katsuhiko Ariga

doi:10.1002/anie.201004929

Layer-by-layer films of graphene and ionic liquids for highly selective gas sensing

Qingmin Ji, Itaru Honma, Seung Min Paek, Misaho Akada, Jonathan P. Hill, Ajayan Vinu, Katsuhiko Ariga

Research output: Contribution to journal › Article › peer-review

309 Citations (Scopus)

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.

Original language	English
Pages (from-to)	9737-9739
Number of pages	3
Journal	Angewandte Chemie - International Edition
Volume	49
Issue number	50
DOIs	https://doi.org/10.1002/anie.201004929
Publication status	Published - 2010 Dec 10

Keywords

graphene
ionic liquids
layer-by-layer assembly
layered compounds
sensors

ASJC Scopus subject areas

Catalysis
Chemistry(all)

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10.1002/anie.201004929

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AU - Paek, Seung Min

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AU - Hill, Jonathan P.

AU - Vinu, Ajayan

AU - Ariga, Katsuhiko

PY - 2010/12/10

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AB - 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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KW - ionic liquids

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KW - layered compounds

KW - sensors

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Layer-by-layer films of graphene and ionic liquids for highly selective gas sensing

Abstract

Keywords

ASJC Scopus subject areas

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