| 초록 |
Metallic nanoparticles have been widely used for catalysis. On the other hands, single-crystalline surface study has been performed to understand fundamental aspects of the catalytic reactions. It found out that the catalytic activity and selectivity strongly depends on the surface crystalline structure. In this study, we design and develop nanometer-sized catalysts by utilizing the knowledge from single crystalline studies. Cubic, cuboctahedral, and porous platinum nanoparticles were synthesized, and their catalytic activity and selectivity were tested for ethylene hydrogenation and benzene hydrogenation. The results for shaped nanoparticles were compared with single crystalline studies. Cubic, cuboctahedral, and octahedral palladium nanoparticles were synthesized and tested for electrocatalytic oxidation of formic acid. The nanoparticles showed the similar trends to single crystalline studies for selectivity while their activity was much better than single crystals. |
