Low temperature CO oxidation over Pd-Ce catalysts supported on ZSM-5 zeolites
文献类型：期刊论文
| 作者 | Han WL(韩维亮) ; Zhang P(张朋); Tang ZC(唐志诚); Lu GX(吕功煊); Tang ZC(唐志诚)
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| 刊名 | Process Safety and Environmental Protection
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| 出版日期 | 2014 |
| 卷号 | 92期号:6页码:822-827 |
| 关键词 | Low temperature catalyst ZSM-5 CO oxidation Noble metal catalyst Synergistic function |
| ISSN号 | 0957-5820 |
| 通讯作者 | 唐志诚 |
| 英文摘要 | A series of Pd–Ce supported ZSM-5 zeolite catalysts for CO oxidation at low temperature were prepared by co-impregnation method. The effect of Pd–Ce synergistic function, Ce loadings, and properties of ZSM-5 zeolite on low temperature CO catalytic oxidation was investigated in detailed. The results showed that the Pd and Ce loading on ZSM-5 zeolite support at the same time enhanced catalytic activity compared with only Pd or Ce loading on ZSM-5 zeolite support. The properties of ZSM-5 zeolite had a strong influence for CO oxidation. Through the research, the ZSM-5 zeolite with high silicon aluminum ratio and small size also was helpful for CO oxidation. Among these catalysts, the catalyst with 19 wt% Ce loading displayed the highest catalytic activity. Chemical and physical properties of catalysts were characterized by powder X-ray diffraction (XRD), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). XRD and TEM showed that Pd species were highly dispersed on the surface of ZSM-5 zeolite, which was strongly dependent on the amounts of Ce loading and the interaction among Pd species, Ce promoter and ZSM-5 support. The addition of CeO2 improved the dispersion of Pd species over ZSM-5, and synergistic function of Pd and CeO2 enhanced the catalytic activity. XPS characterization indicated that as the addition of Ce increased, Pd species was easy to enrich on the surface of the catalyst. |
| 学科主题 | 物理化学与绿色催化 |
| 收录类别 | SCI |
| 资助信息 | The National Basic Research Program of China (2013CB933201) |
| 语种 | 英语 |
| WOS记录号 | WOS:000346541600035 |
| 公开日期 | 2014-12-01 |
| 源URL | [http://210.77.64.217/handle/362003/6818]  |
| 专题 | 兰州化学物理研究所_ERC国家工程研究中心 兰州化学物理研究所_OSSO国家重点实验室 |
| 通讯作者 | Tang ZC(唐志诚) |
| 作者单位 | Chinese Acad Sci, Lanzhou Inst Chem Phys, Natl Engn Res Ctr Fine Petrochem Intermediates, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Han WL,Zhang P,Tang ZC,et al. Low temperature CO oxidation over Pd-Ce catalysts supported on ZSM-5 zeolites[J]. Process Safety and Environmental Protection,2014,92(6):822-827. |
| APA | Han WL,Zhang P,Tang ZC,Lu GX,&唐志诚.(2014).Low temperature CO oxidation over Pd-Ce catalysts supported on ZSM-5 zeolites.Process Safety and Environmental Protection,92(6),822-827. |
| MLA | Han WL,et al."Low temperature CO oxidation over Pd-Ce catalysts supported on ZSM-5 zeolites".Process Safety and Environmental Protection 92.6(2014):822-827. |
入库方式： OAI收割
来源：兰州化学物理研究所
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