Structure and dynamics in protic ionic liquids: A combined optical Kerr-effect and dielectric relaxation spectroscopy study

D.A. Turton; T. Sonnleitner; A. Ortner; M. Walther; G. Hefter; K.R. Seddon; S. Stana; N.V. Plechkova; R. Buchner; K. Wynne

doi:10.1039/c1fd00054c

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Structure and dynamics in protic ionic liquids: A combined optical Kerr-effect and dielectric relaxation spectroscopy study

Journal article

Peer reviewed

Structure and dynamics in protic ionic liquids: A combined optical Kerr-effect and dielectric relaxation spectroscopy study

D.A. Turton, T. Sonnleitner, A. Ortner, M. Walther, G. Hefter, K.R. Seddon, S. Stana, N.V. Plechkova, R. Buchner and K. Wynne

Faraday Discussions, Vol.154, pp.145-153

2012

DOI: https://doi.org/10.1039/c1fd00054c

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Abstract

The structure and dynamics of ionic liquids (ILs) are unusual due to the strong interactions between the ions and counter ions. These microscopic properties determine the bulk transport properties critical to applications of ILs such as advanced fuel cells. The terahertz dynamics and slower relaxations of simple alkylammonium nitrate protic ionic liquids (PILs) are here studied using femtosecond optical Kerr-effect spectroscopy, dielectric relaxation spectroscopy, and terahertz time-domain spectroscopy. The observed dynamics give insight into more general liquid behaviour while comparison with glass-forming liquids reveals an underlying power-law decay and relaxation rates suggest supramolecular structure and nanoscale segregation.

Details

Title: Structure and dynamics in protic ionic liquids: A combined optical Kerr-effect and dielectric relaxation spectroscopy study
Authors/Creators: D.A. Turton (Author/Creator) - University of Glasgow
T. Sonnleitner (Author/Creator) - University of Regensburg
A. Ortner (Author/Creator) - University of Freiburg
M. Walther (Author/Creator) - University of Freiburg
G. Hefter (Author/Creator) - Murdoch University
K.R. Seddon (Author/Creator) - Queen's University Belfast
S. Stana (Author/Creator) - Queen's University Belfast
N.V. Plechkova (Author/Creator) - Queen's University Belfast
R. Buchner (Author/Creator) - University of Regensburg
K. Wynne (Author/Creator) - University of Glasgow
Publication Details: Faraday Discussions, Vol.154, pp.145-153
Publisher: Royal Society of Chemistry
Identifiers: 991005542036007891
Murdoch Affiliation: School of Chemical and Mathematical Science
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 2 Chemistry; 2.89 Ionic, Molecular & Complex Liquids; 2.89.508 Ionic Liquids
Web Of Science research areas: Chemistry, Physical
ESI research areas: Chemistry