| 학회 |
한국공업화학회 |
| 학술대회 |
2022년 봄 (05/11 ~ 05/13, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
26권 1호 |
| 발표분야 |
포스터-촉매 |
| 제목 |
Pt nanoparticles encapsulated in CeO2 over-layers synthesized by controlled reductive treatment to suppress CH4 formation in high-temperature water-gas shift reaction |
| 초록 |
Pt supported on CeO2 (Pt/CeO2) is known to be a good catalyst for the water-gas shift (WGS) reaction. However, Pt catalyzes the methanation reaction as a side reaction, which limits the usefulness of Pt/CeO2 as a catalyst in the high-temperature (HT) WGS reaction. In this study, Pt nanoparticles (Pt NPs) were encapsulated in CeO2 over-layers (‘Pt in CeO2’) by using controlled reductive treatments to suppress the methanation reaction on Pt NPs. ‘Pt in CeO2’ catalyst demonstrated the much lower CH4 selectivity while showing the same high activity in the HT-WGS reaction compared to the conventional ‘Pt on CeO2’ catalyst. Detailed characterizations revealed that the underlying Pt NPs promoted the WGS reaction on thin ( |
| 저자 |
이재하1, 이은원1, Chengbin Li2, 강성수3, 박정원1, 김지만1, 김도희4
|
| 소속 |
1서울대, 2Chinese Academy of Sciences, 3Dalian, 4성균관대 |
| 키워드 |
Pt nanoparticles; water-gas shift reaction; encapsulation
|
| E-Mail |
|
