| Low temperature CO oxidation over Pd-Ce catalysts supported on ZSM-5 zeolites | |
| Department | ERC国家工程研究中心 |
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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| The second department | osso国家重点实验室 |
| 2014 | |
| Source Publication | Process Safety and Environmental Protection
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| ISSN | 0957-5820 |
| Volume | 92Issue:6Pages:822-827 |
| Abstract | 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. |
| Keyword | Low Temperature Catalyst Zsm-5 Co Oxidation Noble Metal Catalyst Synergistic Function |
| Subject Area | 物理化学与绿色催化 |
| DOI | 10.1016/j.psep.2013.04.003 |
| Funding Organization | The National Basic Research Program of China (2013CB933201) |
| Indexed By | SCI |
| If | 2.551 |
| Language | 英语 |
| Funding Project | 工业催化课题组;环境催化与氢能源研究组;环境催化与清洁能源研究组 |
| compositor | 第一作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/6818 |
| Collection | 精细石油化工中间体国家工程研究中心（ERC） 羰基合成与选择氧化国家重点实验室（OSSO） |
| Corresponding Author | Tang ZC(唐志诚) |
| Affiliation | Chinese Acad Sci, Lanzhou Inst Chem Phys, Natl Engn Res Ctr Fine Petrochem Intermediates, Lanzhou 730000, Peoples R China |
| Recommended Citation 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Low temperature CO o（940KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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