| 초록 |
Ceria is one of the most widely used support materials as well as catalysts for diverse oxidation reactions due to its high oxygen storage capacity and high stability over the wide range of temperatures. Although many experiments or density functional theory (DFT) calculations for CO oxidation on doped CeO2 have been carried out, they focused only on few dopant elements or specific dopant element types of RE or TM. In this study, we investigated the effect of all of the RE metal or TM dopants on CeO2 for CO oxidation in a combination of computational and experimental approaches. Especially, we decoupled the intrinsic effect of RE dopants for CO oxidation by well-controlled size and surface area in our experiments, followed by the corresponding DFT calculations. In addition, based on high-throughput computational screening results, we successfully synthesized and confirmed the promising pairs of TM co-dopants to significantly enhance the catalytic activity of CO oxidation on CeO2. |
