| 초록 |
Pore structure is of great importance to maintain performance and durability of High temperature proton exchange membrane fuel cells. Improper pore structure would deteriorate a cell performance by abnormal mass transfer of catalyst layer and diffusion layer. In this study, GDE of various pore structure was prepared. In addition, graphene was first synthesized and impregnated Pt nanoparticle on the surface of graphene. Two different types of electro catalysts such as Pt-C and Pt-G(graphene) were prepared. As-prepared GDE of various pore structure and Pt-G were identified by SEM, TEM, XRD, TGA, and FT-IR. The various MEAs were fabricated using where Pt of 0.5mg/cm2 was loaded for cathode and anode, respectively. The cell performance was conducted under high temperature condition. |
