| 초록 |
Heterogeneous catalysts have been widely applied in modern chemical industry. We are trying to understand the chemical reactions occurred at the surface of nanoparticle catalysts and design the catalysts to have better performance of higher activity, selectivity, and stability. First, we control the shape of platinum-group metal nanoparticles to have specific facets, and tested them for electrocatalytic reactions or various hydrogenation reactions. The unique surface structure contributed to presenting higher activity and selectivity. Second, controlling the interaction between catalytic metal components and support materials can enhance activity and stability while minimizing the amount of precious metal catalysts. We could prepare metal nanoparticle catalyst with a strong interaction with supports, and their catalytic property was tested for electrocatalytic reactions. Even a single atomic catalyst can be prepared using this method. |
