Transport and phase dynamics of poly(vinyl pyrrolidone) doped plastically crystalline N-methyl-N-propylpyrrolidinium tetrafluoroborate

Efthimiadis, Jim, Annat, Gary, Efthimiadis, John, MacFarlane, Douglas R. and Forsyth, Maria 2006, Transport and phase dynamics of poly(vinyl pyrrolidone) doped plastically crystalline N-methyl-N-propylpyrrolidinium tetrafluoroborate, Solid state ionics, vol. 177, no. 1-2, pp. 95-104.

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Title Transport and phase dynamics of poly(vinyl pyrrolidone) doped plastically crystalline N-methyl-N-propylpyrrolidinium tetrafluoroborate
Formatted title Transport and phase dynamics of poly(vinyl pyrrolidone) doped plastically crystalline N-methyl-N-propylpyrrolidinium tetrafluoroborate
Author(s) Efthimiadis, Jim
Annat, Gary
Efthimiadis, John
MacFarlane, Douglas R.
Forsyth, Maria
Journal name Solid state ionics
Volume number 177
Issue number 1-2
Start page 95
End page 104
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2006-01-16
ISSN 0167-2738
1872-7689
Keyword(s) poly(vinyl pyrrolidone) (PVP)
pyrrolidinium
tetrafluoroborate
organic salts
plastic crystal phases
electrolyte
Nuclear Magnetic Resonance (NMR)
conductivity
Summary The plastic crystal phase forming N-methyl-N-propylpyrrolidinium tetrafluoroborate organic salt (P13BF4) was combined with 2, 5 and 10 wt.% poly(vinyl pyrrolidone) (PVP). The ternary 2 wt.% PVP/2 wt.% LiBF4/P13BF4 was also investigated. Thermal analysis, conductivity, optical thermomicroscopy, and Nuclear Magnetic Resonance (11B, 19F, 1H, 7Li) were used to probe the fundamental transport processes. Both the onset of phase I and the final melting temperature were reduced with increasing additions of PVP. Conductivity in phase I was 2.6 × 10− 4 S cm− 1 5.2 × 10− 4 S cm− 1 1.1 × 10− 4 S cm− 1 and 3.9 × 10− 5 S cm− 1 for 0, 2, 5 and 10 wt.%PVP/P13BF4, respectively. Doping with 2 wt.% LiBF4 increased the conductivity by up to an order of magnitude in phase II. Further additions of 2 wt.% PVP slightly reduced the conductivity, although it remained higher than for pure P13BF4.
Language eng
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 ©2005, Elsevier B.V.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30030106

Document type: Journal Article
Collection: Institute for Technology Research and Innovation
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