Fast ion conduction in an acid doped pentaglycerine plastic crystal

Long, S., Howlett, P. C., MacFarlane, D. R. and Forsyth, M. 2006, Fast ion conduction in an acid doped pentaglycerine plastic crystal, Solid state ionics, vol. 177, no. 7-8, pp. 647-652, doi: 10.1016/j.ssi.2005.12.036.

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Title Fast ion conduction in an acid doped pentaglycerine plastic crystal
Author(s) Long, S.
Howlett, P. C.ORCID iD for Howlett, P. C.
MacFarlane, D. R.
Forsyth, M.ORCID iD for Forsyth, M.
Journal name Solid state ionics
Volume number 177
Issue number 7-8
Start page 647
End page 652
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2006-03-15
ISSN 0167-2738
Keyword(s) plastic crystal
proton conduction
Summary High proton conductivity has been achieved in the high temperature plastic crystal phase of pentaglycerine when doped with strong acids, including trifluoromethanesulfonic acid (triflic acid) and methanesulfonic acid. The solid–solid phase transition from the ordered to plastic phase in this material occurs at 86 °C and conductivities of 10− 3 S/cm were measured in the high temperature plastic phase on the addition of 1 mol% triflic acid. In the case of methanesulfonic acid, the conductivities showed a greater dependence on acid concentration and were lower than for triflic acid, as expected on the basis of acid strengths. Electrochemical characterisation shows a clear hydrogen reduction process indicating that the proton is the mobile species in the plastic phase.
Language eng
DOI 10.1016/j.ssi.2005.12.036
Field of Research 039999 Chemical Sciences not elsewhere classified
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2006, Elsevier B.V.
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