| 학회 |
한국화학공학회 |
| 학술대회 |
2014년 가을 (10/22 ~ 10/24, 대전 DCC) |
| 권호 |
20권 2호, p.2196 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
Preferential Oxidation of CO over Au/MxOy/Al2O3 (MxOy = La2O3, CeO2 and MgO) Catalysts: Combined Effects of Gold Size, Support and Pre- treatment Methods |
| 초록 |
The preferential CO oxidation under excess hydrogen was examined over Au/MxOy/Al2O3 (MxOy = La2O3, CeO2 and MgO) catalysts. The effects of the support and nature of gold on the catalytic activity was intensively investigated. 1 wt% Au was loaded onto the support through the deposition-precipitation method with urea (DPU). Various catalyst samples were prepared after different pretreatments. The catalytic activity appeared to be dependent on the promoter and decreased in the following order: Au/La2O3/Al2O3 Au/CeO2/Al2O3 Au/MgO/Al2O3 Au/Al2O3. The pretreatment conditions affected the particle size of gold and oxidation state of gold, which caused the different catalytic activities. The smaller metallic gold particles were proved to be beneficial for this reaction. |
| 저자 |
LAKSHMANAN PANDIAN, 김보배, 박은덕
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| 소속 |
아주대 |
| 키워드 |
Preferential Oxidation; Gold Size effect; Support effect
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| 원문파일 |
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