| 초록 |
Carbon materials derived from metal-organic frameworks (MOFs) have emerged as a new class of electrocatalysts in renewable energy devices. In this study, a modified electrode composite was synthesized in order to solve the problem of using graphene and MIL-101, which is one of the metal-organic frameworks, for direct methanol fuel cells (DMFCs). The synthesis of ferric based MOF and 2D-graphene composites provides synergistic effects to form 3D structures and a homogeneous adsorption surface of Pt nanoparticles. The synthesized composites revealed the high electrochemical activity (261.83 m2/g), forward current density (28.03 mA/cm2, 393 mA/mgPt) and stability for the oxidation of methanol. Electrochemical properties of the catalysts were compared by measuring cyclic voltammetry (CV). The results demonstrated that the composites successfully decorated Pt nanoparticles with the crystallite narrow size and have a high electrochemical surface area (ECSA). |
