| 학회 | 한국화학공학회 |
| 학술대회 | 2018년 가을 (10/24 ~ 10/26, 대구 EXCO) |
| 권호 | 24권 2호, p.1950 |
| 발표분야 | 촉매 및 반응공학(Catalysis and Reaction Engineering) |
| 제목 | CO Oxidation on SnO2 Surfaces Promoted by Pt-Doping |
| 초록 | Doping a precious metal atoms into host metal oxide can enhance catalytic activity by changing the property of surface lattice oxygen. Here, a Pt-doped antimony-tin oxide (Pt/Sb-SnO2) for CO and C3H6 oxidation was synthesized. Pt-deposited tin oxide (Pt/SnO2) and silica (Pt/SiO2) were also prepared for comparison. HAADF-STEM images, DRIFT for CO chemisorption, H2-uptakes, and XPS results showed that the Pt/Sb-SnO2 has atomically doped Pt inside the tin oxide surface. The Pt/Sb-SnO2 showed the highest activity for CO oxidation but the poorest activity for C3H6 oxidation. CO-TPR and O2-TPD results showed that doping Pt atoms into the tin oxide lattice leads to a better surface lattice oxygen activity, resulting in enhanced catalytic performance. In-situ DRIFT for CO oxidation showed less formation of carbonates on the surface of the Pt/Sb-SnO2, resulting in enhanced CO oxidation activity and durability. |
| 저자 | 배준민 , 이현주 |
| 소속 | 한국과학기술원 |
| 키워드 | 촉매 및 반응공학 |
| VOD | VOD 보기 |
| 원문파일 | 초록 보기 |
