2008 Volume 33 Issue 4 Pages 1217-1220
We experimentally investigated the influence of amount of catalyst formed on carbon nanotube support on the performance of polymer electrolyte fuel cell (PEFC). Platinum was used as the catalyst. We prepared four kinds of CNT's with Pt of 18 wt%, 25 wt%, 37 wt% and 41 wt%. First, we measured the optimum mass of electrolyte in the catalyst paste for each CNT –supported catalyst. Secondly, the output voltage and power density of the PEFC having the CNT-supported catalyst were estimated. It was found that the PEFC with CNT support of about 29wt%Pt could generate the highest electric power. Furthermore, the PEFC with CNT support may have lower optimum amount of Pt than that with carbon powder-supported catalyst which is widely used.
