Poly(alkylene biguanides) as Proton Conductors for High-Temperature PEMFCs

Poly(alkylene biguanides) as Proton Conductors for High-Temperature PEMFCs

Poly(alkylene biguanides) are novel high‐temperature proton conductors. This long‐known class of polymers is presented as surprisingly stable high‐temperature proton‐conducting materials in the form of water‐free HCl conjugates. Proton conductivity is dominated by free volume relaxation. Application...

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Veröffentlicht in:Advanced materials (Weinheim) 2010-02, Vol.22 (8), p.E72-E76
Hauptverfasser: Britz, Jochen, Meyer, Wolfgang H., Wegner, Gerhard
Format: Artikel
Sprache:eng
Schlagworte:
Biguanides - chemistry
Calorimetry, Differential Scanning
Electric Conductivity
fuel cells
Hot Temperature
ion conductivity
Magnetic Resonance Spectroscopy
polymeric materials
Polymers - chemistry
Protons
structure-property relationships
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Zusammenfassung:Poly(alkylene biguanides) are novel high‐temperature proton conductors. This long‐known class of polymers is presented as surprisingly stable high‐temperature proton‐conducting materials in the form of water‐free HCl conjugates. Proton conductivity is dominated by free volume relaxation. Application in the context of fuel‐cell membranes is discussed.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200902834