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Protic plastic crystal/PVDF composite membranes for proton exchange membrane fuel cells under non-humidified conditions

journal contribution
posted on 01.09.2017, 00:00 authored by M Díaz, A Ortiz, Jenny PringleJenny Pringle, Xungai WangXungai Wang, R Vijayaraghavan, D R MacFarlane, Maria ForsythMaria Forsyth, I Ortiz
Composite membranes based on the protic plastic crystal N,N-dimethylethylenediammonium triflate [DMEDAH][TFO] and poly(vinylidene fluoride) (PVDF) nanofibers have been developed for proton exchange membrane fuel cells (PEMFCs) under non-humidified conditions. The effect of addition of 5 mol% triflic acid or 5 mol% of the base N,N-dimethylethylenediamine on the thermal and transport properties of the material is discussed. The acid-doped plastic crystal reports more than double the ionic conductivity of the pure plastic crystal. The effects of doping the plastic crystal and the composites, with acid or base, on the ionic conductivity and fuel cell performance are reported. Composite membranes based on PVDF nanofibers and [DMEDAH][TFO] were tested in a single PEMFC. The results show the potential of these composite membranes to be used as electrolytes in this electrochemical application without external humidification.

History

Journal

Electrochimica acta

Volume

247

Pagination

970 - 976

Publisher

Elsevier

Location

Kidlington, Eng.

ISSN

0013-4686

eISSN

1873-3859

Language

eng

Publication classification

C Journal article; C1 Refereed article in a scholarly journal

Copyright notice

2017, Elsevier