TY - JOUR
T1 - Proton conductivity of zwitterionic-type molecular solids under intermediate temperature and anhydrous conditions
AU - Yamada, Masanori
AU - Honma, Itaru
N1 - Funding Information:
This work was supported by R&D program of PEFC by New Energy and Industrial Technology Development Organization (NEDO), Japan.
PY - 2005/2/4
Y1 - 2005/2/4
N2 - 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 S cm -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 S cm-1. Moreover, the conductivity of PS-MP composite material did not decrease under the heating at 160°C for 50 h.
AB - 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 S cm -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 S cm-1. Moreover, the conductivity of PS-MP composite material did not decrease under the heating at 160°C for 50 h.
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U2 - 10.1016/j.cplett.2004.12.042
DO - 10.1016/j.cplett.2004.12.042
M3 - Article
AN - SCOPUS:12344274604
SN - 0009-2614
VL - 402
SP - 324
EP - 328
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 4-6
ER -