Plastic crystal phases with high proton conductivity

Rana, Ali Usman, Vijayaraghavan, R., MacFarlane, Douglas R. and Forsyth, Maria 2012, Plastic crystal phases with high proton conductivity, Journal of materials chemistry, vol. 22, no. 7, pp. 2965-2975.

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Title Plastic crystal phases with high proton conductivity
Author(s) Rana, Ali Usman
Vijayaraghavan, R.
MacFarlane, Douglas R.
Forsyth, Maria
Journal name Journal of materials chemistry
Volume number 22
Issue number 7
Start page 2965
End page 2975
Total pages 11
Publisher Royal Society of Chemistry
Place of publication Cambridge, England
Publication date 2012
ISSN 0959-9428
1364-5501
Summary The addition of up to 4 mol% of the strong acids, trifluoromethane sulfonic acid (TfOH) and bis-trifluoromethanesulfonyl imide [HN(Tf) 2], to the organic ionic plastic crystal (OIPC) [Choline][DHP] has been shown to dramatically increase the ionic conductivity by up to three orders of magnitude whilst still retaining the crystalline structure of the OIPC matrix. This enhanced proton diffusivity led to a significant proton reduction reaction in the electrochemical measurements. Powder XRD and DSC thermal analyses strongly suggest that these mixtures are single phase, crystalline materials. The work here also confirms that an increase in TfOH acid concentration (8 mol% and 12 mol%) results in a higher content of the amorphous phase as previously observed for the H 3PO 4/[Choline][DHP] system. © 2012 The Royal Society of Chemistry.
Language eng
Field of Research 091205 Functional Materials
030399 Macromolecular and Materials Chemistry not elsewhere classified
Socio Economic Objective 850602 Energy Storage (excl. Hydrogen)
HERDC Research category C1 Refereed article in a scholarly journal
Persistent URL http://hdl.handle.net/10536/DRO/DU:30051159

Document type: Journal Article
Collection: Institute for Frontier Materials
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