Water sorption and protonic conductivity in a filled/unfilled thermostable ionomer for proton exchange membrane fuel cell | Zendy

Baradie B. | Zendy; Poinsig C. | Zendy; Sanchez J. Y. | Zendy; Piffard Y. | Zendy

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Water sorption and protonic conductivity in a filled/unfilled thermostable ionomer for proton exchange membrane fuel cell

Author(s) -

Baradie B.,

Poinsig C.,

Sanchez J. Y.,

Piffard Y.

Publication year - 1999

Publication title -

macromolecular symposia

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.257

H-Index - 76

eISSN - 1521-3900

pISSN - 1022-1360

DOI - 10.1002/masy.19991380110

Subject(s) - polysulfone , conductivity , ionomer , membrane , materials science , relative humidity , sorption , proton exchange membrane fuel cell , chemical engineering , analytical chemistry (journal) , chemistry , composite material , chromatography , polymer , organic chemistry , thermodynamics , copolymer , biochemistry , physics , adsorption , engineering

A filled ionomeric membrane is achieved by dispersing several % in weight of the phosphatoantimonic acid H 3 Sb 3 P 2 O 14 , xH 2 O (H3), in a Sulfonated PolySulfone (SPS) solution 1) . Water up‐take of pristine and filled SPS of different cation exchange capacity (cec) was measured at 25°C and 80°C: It is higher for filled than unfilled membrane. Comparatively, protonic conductivity measurements performed on the same samples show a higher conductivity for the filled samples than for the unfilled. The conductivity value is higher than that expected from the overall calculated concentration in charge carriers: A conductivity value of 0.06 S.cm −1 is gained at 80°C under 100% Relative Humidity (HR) for a 1.4 meq.g −1 cec SPS filled with 8% in H3.

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