초록 |
Alkaline anion exchange membrane fuel cell (AAEMFC) is an electrochemical device that can convert the chemical energy of H2 into directly electrical current. AAEMFCs exhibit several advantages over PEMFCs, such as that they can use cheaper non-noble metal catalysts. And the oxygen reduction (ORR) under alkaline conditions is faster than in acidic conditions. Alkaline solid polymer electrolyte membranes contain positive ionic functional groups and mobile negatively charged anions. In this regard, Poly(1-vinylimidazole)(P1Vim) was synthesized by the radical polymerization of 1-vinylimidazole. In addition, quantitive methylation supplies a permanent cationic charge on the imidazole ring. These imidazolium salts exhibit high ionic conductivities, high chemical and thermal stability. |