| 학회 |
한국공업화학회 |
| 학술대회 |
2021년 가을 (11/03 ~ 11/05, 대구 엑스코(EXCO)) |
| 권호 |
25권 2호 |
| 발표분야 |
[촉매] 환경촉매기술의 현황: 실험실 연구부터 실제 적용까지 |
| 제목 |
표면원자 조절을 통한 지지체 환원력과 분산력 향상에 기반한 고활성 금속 촉매설계 |
| 초록 |
For oxide supported metal catalysts, support reducibility and metal dispersion are the key factors to determine the activity and selectivity in many essential reactions involving redox process. Herein, we tuned the exposed surface atoms of the catalyst by morphology engineering and doping methods. Firstly, we evaluate the CeO2 catalyst for CO oxidation as a model reaction to rationally design an ultrastable catalyst with high activity. The ceria co-doped with RE and TM had increased catalytic activity as well as superior resistance to deactivation. Secondly, Pd supported on Cu-doped CeO2 (Pd/CDC) for water-gas shift reaction was considered a model system; WGSR activity of the Pd/CDC cube was verified to synergistically increase by more than just the sum of the morphology and Cu doping effects. This work presents a rational design knowledge to enhance catalytic activity that can be extended to a wide range of supported metal systems. |
| 저자 |
한정우 |
| 소속 |
포항공과대 |
| 키워드 |
Cerium oxide; Surface reducibility; Metal dispersion; Doping; DFT
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| E-Mail |
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