| 학회 | 한국공업화학회 |
| 학술대회 | 2021년 봄 (05/12 ~ 05/14, 부산 벡스코(BEXCO)) |
| 권호 | 25권 1호 |
| 발표분야 | 포스터-촉매 |
| 제목 | Rational Design of Highly-Stable and -Reactive Au Single Atom Catalysts Dispersed on Hybrid-oxide Support |
| 초록 | Single-atom catalysts (SACs), which are atomically dispersed metals on a support surface, have been regarded as a next generation catalyst with exceptional catalytic efficiency. However, the thermodynamic instability of the SACs leads to agglomeration into NPs. Here, we synthesized Au/CeO 2 -TiO 2 hybrid-oxide catalysts using deposition-precipitation method to design reactive and stable Au SACs for low-temperature CO oxidation. The structure of synthesized Au/CeO 2 -TiO 2 was characterized by HRTEM, XRD, and XPS analysis, and the catalytic properties were investigated using the CO oxidation reaction. Anchored Au single atoms at the CeO 2 -TiO 2 interface show higher activity for low-temperature CO oxidation than Au/TiO 2 catalysts. Based on a combinatorial study of DFT calculations and experimental catalyst analysis, we suggest a methodology to design the significantly active Au SACs and provide an insight into the stabilization of the Au single atoms under the reaction condition. |
| 저자 | 강은지 , 유미 , 최혁 , 윤지은 , 김다혜 , 주재은 , 김현유 |
| 소속 | 충남대 |
| 키워드 | single-atom catalyst ; gold ; CO oxidation |
