| 초록 |
Polymer electrolyte membrane fuel cells (PEMFCs) are electrochemical energy conversion devices that directly convert chemical energy to electric energy. Inverse-opal structure as catalyst structure is attractive in PEMFCs because of their benefits such as large surface areas, interconnected macro-pores, and enhanced mass transfer. However, it is hard to fabricate directly the platinum inverse-opal electrode on gas diffusion layers (GDLs) which have rough surface. In this study, we suggest the modified method to apply the platinum inverse-opal electrode on membrane-electrode assemblies (MEAs) by using decal transfer process, which is more facile and reproducible since we used flat substrate instead of GDLs when the platinum inverse-opal structure was fabricated by electrodeposition. The inverse-opal structure was confirmed by scanning electron microscopy (SEM) and X-ray diffraction (XRD). Furthermore, we performed various electrochemical measurements such as full cell test and cyclic voltammetry (CV) |
