TY - JOUR
T1 - Alginic acid-imidazole composite material as anhydrous proton conducting membrane
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 - 2004/11
Y1 - 2004/11
N2 - Recently, membranes with high anhydrous proton conducting have been attracted remarkable interest for the application to the polymer electrolyte membrane fuel cell (PEFC). In this paper, we have investigated the anhydrous proton conductor consisting of alginic acid (AA), one of the acidic biopolymers, and imidazole (Im). This AA-Im composite material showed the proton conductivity of 2×10-3 S cm-1 at 130°C under anhydrous conditions. Additionally, these AA-Im composite materials have the highly mechanical property and thermal stability. Furthermore, the biological products, such as biopolymer, are cheap, non-hazardous, and environmentally benign. The proton conductive biopolymer composite material may have the potential for its superior ion conducting properties, in particular, under anhydrous (water-free) or extremely low humidity conditions.
AB - Recently, membranes with high anhydrous proton conducting have been attracted remarkable interest for the application to the polymer electrolyte membrane fuel cell (PEFC). In this paper, we have investigated the anhydrous proton conductor consisting of alginic acid (AA), one of the acidic biopolymers, and imidazole (Im). This AA-Im composite material showed the proton conductivity of 2×10-3 S cm-1 at 130°C under anhydrous conditions. Additionally, these AA-Im composite materials have the highly mechanical property and thermal stability. Furthermore, the biological products, such as biopolymer, are cheap, non-hazardous, and environmentally benign. The proton conductive biopolymer composite material may have the potential for its superior ion conducting properties, in particular, under anhydrous (water-free) or extremely low humidity conditions.
KW - Biopolymer
KW - Polymer electrolyte membrane fuel cell
KW - Proton conductivity
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U2 - 10.1016/j.polymer.2004.10.017
DO - 10.1016/j.polymer.2004.10.017
M3 - Article
AN - SCOPUS:8844228199
VL - 45
SP - 8349
EP - 8354
JO - Polymer (United Kingdom)
JF - Polymer (United Kingdom)
SN - 0032-3861
IS - 25
ER -