Polymer Solid Acid Composite Membranes for Fuel-Cell Applications | Zendy

Dane A. Boysen | Zendy; Calum R. I. Chisholm | Zendy; Sossina M. Haile | Zendy; Sekharipuram Narayanan | Zendy

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Polymer Solid Acid Composite Membranes for Fuel-Cell Applications

Author(s) -

Dane A. Boysen,

Calum R. I. Chisholm,

Sossina M. Haile,

Sekharipuram Narayanan

Publication year - 2000

Publication title -

journal of the electrochemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.258

H-Index - 271

eISSN - 1945-7111

pISSN - 0013-4651

DOI - 10.1149/1.1393947

Subject(s) - polyvinylidene fluoride , conductivity , materials science , percolation (cognitive psychology) , polymer , composite material , percolation threshold , membrane , phase (matter) , composite number , fuel cells , electrochemistry , chemical engineering , electrical resistivity and conductivity , chemistry , organic chemistry , electrode , biochemistry , neuroscience , electrical engineering , biology , engineering

A systematic study of the conductivity of polyvinylidene fluoride (PVDF) and CsHSO4 composites, containing 0 to 100% CsHSO4, has been carried out. The polymer, with its good mechanical properties, served as a supporting matrix for the high proton conductivity inorganic phase. The conductivity of composites exhibited a sharp increase with temperature at 142°C, characteristic of the superprotonic phase transition of CsHSO4. At high temperature (160°C), the dependence of conductivity on vol % CsHSO4 was monotonic and revealed a percolation threshold of ~10 vol %. At low temperature (100°C), a maximum in the conductivity at ~80 vol % CsHSO4 was observed. Results of preliminary fuel cell measurements are presented.

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