| 초록 |
Platinum bimetallic hetero-structures are used as catalysts for many important transformations. For example, platinum alloys have been widely studied as electrode catalysts of fuel cellsl. In this study, we synthesized shape-controlled platinum nanoparticles (cube, octapods and branch shapes). Using these platinum nanoparticles as cores, we prepared platinum-cobalt core-shell alloy nanoparticles with different cobalt ratios. We characterized Pt-Co alloy nanoparticles using TEM, EDX and cyclic voltammetry (CV) tests. The shape-controlled platinum-cobalt alloy nanocrystalsshow good activities for methanol oxidation electrocatalytic-reaction. |
