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Proton conductivity of zwitterionic-type molecular solids under intermediate temperature and anhydrous conditions
- Source :
-
Chemical Physics Letters . Feb2005, Vol. 402 Issue 4-6, p324-328. 5p. - Publication Year :
- 2005
-
Abstract
- Abstract: Anhydrous proton conducting material for polymer electrolyte membrane fuel cell (PEFC) was prepared by the mixing of zwitterionic-type molecular solid 3-pyridinesulfonic acid (PS) and organic acid methylenediphosphonic acid (MP). As a result, PS molecule, which has sulfonic acid and pyridine group in its structure, showed the proton conductivity of 4×10−5 Scm−1 at 160 °C under anhydrous condition. Surprisingly, by the mixing of MP to PS material, the PS–MP composite material exhibited a conductivity of 2×10−3 Scm−1. Moreover, the conductivity of PS–MP composite material did not decrease under the heating at 160 °C for 50 h. [Copyright &y& Elsevier]
- Subjects :
- *SOLID state physics
*COMPOSITE materials
*ORGANIC compounds
*CARBON compounds
Subjects
Details
- Language :
- English
- ISSN :
- 00092614
- Volume :
- 402
- Issue :
- 4-6
- Database :
- Academic Search Index
- Journal :
- Chemical Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 22260123
- Full Text :
- https://doi.org/10.1016/j.cplett.2004.12.042