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题名: Preferential CO oxidation on Ce-promoted Pt/gamma-Al2O3 catalysts under H-2-rich atmosphere
作者: Liu Huanling1;  Lei, Ma1;  Shao Saibing1, 2;  Li Zenghe2;  Wang Aiqin1;  Huang Yanqiang1;  Tao, Zhang1
关键词: platinum ;  cerium ;  alumina ;  co-deposition-precipitation ;  carbon monoxide ;  preferential oxidation ;  fuel cell
刊名: CHINESE JOURNAL OF CATALYSIS
发表日期: 2007-12-01
卷: 28, 期:12, 页:1077-1082
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: Preferential CO oxidation (PROX) under hydrogen-rich atmosphere was investigated over Ce-promoted Pt/gamma-Al2O3 catalysts. The preparation procedures and conditions, including co-deposition-precipitation (CP) sequential deposition-precipitation (SP), and deposition-precipitation temperature, had great impacts on the catalytic activity. Among the catalysts investigated, the Pt-Ce/gamma-Al2O3-CP-80 catalyst prepared by co-deposition-precipitation at 80 degrees C showed the best catalytic performance with the maximum CO conversion of 85% at 120 degrees C. The catalysts prepared under different conditions were further characterized by temperature-programmed reduction (H-2-TPR) and in situ DRIFTS, and the promoting role of Ce was clarified.
关键词[WOS]: SELECTIVE OXIDATION ;  SUPPORT INTERACTION ;  HYDROGEN STREAM ;  CARBON-MONOXIDE ;  CERIA ;  H-2 ;  PROX ;  MECHANISM ;  PT/CEO2 ;  GASES
语种: 英语
WOS记录号: WOS:000252416200013
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140570
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Beijing Inst Chem Technol, Beijing 100029, Peoples R China

Recommended Citation:
Liu Huanling,Lei, Ma,Shao Saibing,et al. Preferential CO oxidation on Ce-promoted Pt/gamma-Al2O3 catalysts under H-2-rich atmosphere[J]. CHINESE JOURNAL OF CATALYSIS,2007,28(12):1077-1082.
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