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Low Cost Filled Thermostable Ionomer Membrane for P.E.M.F.C.

Published online by Cambridge University Press:  10 February 2011

C. Poinsignon ,
I. Amodio ,
D. Foscallo  and
J.Y. Sanchez
C. Poinsignon
Affiliation:
Laboratoire d'Electrochimie et de Physicochimie des Matériaux et des Interfaces, UMR 5631 ENSEEG, B.P.75 F-38402 Saint Martin d'Hères Cédex, FRANCE. Poinsign@inpg.fr
I. Amodio
Affiliation:
Laboratoire d'Electrochimie et de Physicochimie des Matériaux et des Interfaces, UMR 5631 ENSEEG, B.P.75 F-38402 Saint Martin d'Hères Cédex, FRANCE
D. Foscallo
Affiliation:
Laboratoire d'Electrochimie et de Physicochimie des Matériaux et des Interfaces, UMR 5631 ENSEEG, B.P.75 F-38402 Saint Martin d'Hères Cédex, FRANCE
J.Y. Sanchez
Affiliation:
Laboratoire d'Electrochimie et de Physicochimie des Matériaux et des Interfaces, UMR 5631 ENSEEG, B.P.75 F-38402 Saint Martin d'Hères Cédex, FRANCE
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Abstract

A filled ionomeric membrane was achieved by dispersing phosphatoantimonic acid H3Sb3P2014, ×H20 (H3) in a Sulfonated PolySulfone (SPS) solution [1]. Water up-take is higher for filled than unfilled membrane as well as Protonic conductivity which is larger than that expected from the overall calculated concentration in charge carriers : a conductivity value of 0.135 S.cm−1 was gained at 50°C under 1003% Relative Humidity (HR) for a 1.6 meq.g−1 cationic exchange capacity (cec) SPS filled with 8% in H3 against 0.06S.cm−1 for an unfilled one. Mechanical measurements on the wet membrane shows the plasticizing effect of sulfonation, water and of the filler content which simultanously reinforced the cohesion of the membrane.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 548: Symposia EE – Solid State Ionics V , 1998 , 307
Copyright
Copyright © Materials Research Society 1999

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References

REFERENCES

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