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Report No.

The Development of the alternative of platinum cathode catalyst of polymer electrolyte fuel cell using precursor polymer material

Yoshizawa, Reina*; Sugawara, Toshifumi*; Aritani, Hirofumi*; Shimada, Akihiko; Idesaki, Akira; Hakoda, Teruyuki; Sugimoto, Masaki; Yoshikawa, Masahito

Carbon material which is manufactured after high temperature treatment of polymer is one of the candidates for the alternative of platinum cathode catalyst of polymer electrolyte fuel cell. In this study, we examine the influence of potential of oxygen reduction reaction by adding metal including material to polymer, precursor of carbon material. Specifically, 95 wt% of carboxymethyl cellulose (CMC) and 5 wt% of phthalocyanine (Pc) including metal or Pc were mixed. Adding water to this, the mixture of Pc-CMC were prepared. The mixture was irradiated by electron beam up to 100 kGy, dried and treated at 800 degree for 1 h in Ar gas. Then carbon material was manufactured. This was measured by electrochemical measurement. Then oxygen reduction reaction potential was calculated. The carbon material, CMC with Pc including Co has higher potential of 0.1 V than that with Pc including other metal or Pc. This phenomenon is the almost same as that manufactured by other polymer than CMC. It is estimated that Co is contributed to higher potential of oxygen reduction reaction.



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