Influence of Ce/Zr Ratio on the Synergistic Effect over CuCe1-xZrxOy/ZSM-5 Catalysts for the Self-Sustained Combustion of Carbon Monoxide
文献类型：期刊论文
| 作者 | Zhao RZ; Hao QL; Bin F(宾峰) ; Kang RN; Dou BJ
|
| 刊名 | COMBUSTION SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2017 |
| 卷号 | 189期号:8页码:1394-1415 |
| 关键词 | Carbon monoxide Ce/Zr ratio CuCe1-xZrxOy/ZSM-5 catalysts Self-sustained combustion |
| ISSN号 | 0010-2202 |
| 中文摘要 | The self-sustained combustion of CO was studied over a series of CuCe1-xZrxOy/ZSM-5 catalysts with different Ce/Zr molar ratios to evaluate the correlation of their structural characteristics with catalytic performance. The obtained results demonstrated that the activity of the cerium-containing catalysts was much higher than that of the CuZr1/Z with the activity of CO combustion following the order: CuZr1/Z < CuCe0.25Zr0.75/Z < CuCe0.5Zr0.5/Z < CuCe1/Z < CuCe0.75 Zr(0.25)Z. After cerium addition the cerium-zirconium mixed oxides formed promoted the copper species well dispersed on the catalyst surface. The high activities of cerium-containing catalysts were closely related to the synergetic effects among the copper cerium and zirconium species as the surface copper species provided sites for CO adsorption and the cerium-zirconium mixed oxides promote the activation of oxygen. The activities were probably also attributed to some copper species present as substitutional defects in the ceria lattice which were more reducible than the copper clusters mini-crystals and bulk CuO particles. The CuCe0.75Zr0.25/Z possessed excellent redox capacity adsorption/activation properties for O and CO species and therefore induced a self-sustained combustion of CO at the lowest temperature than that of other CuCe1-xZrxOy/ZSM-5 catalysts. |
| 类目[WOS] | Thermodynamics ; Energy & Fuels ; Engineering, Multidisciplinary ; Engineering, Chemical |
| 研究领域[WOS] | Thermodynamics ; Energy & Fuels ; Engineering |
| 关键词[WOS] | RAY PHOTOELECTRON-SPECTROSCOPY ; SURFACE-REACTION MECHANISM ; TEMPERATURE CO OXIDATION ; PREFERENTIAL OXIDATION ; OXIDE CATALYSTS ; SOLID-SOLUTIONS ; CERIA ; ZR ; CEXZR1-XO2 ; H-2 |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000399359500007 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/60555]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Zhao RZ,Hao QL,Bin F,et al. Influence of Ce/Zr Ratio on the Synergistic Effect over CuCe1-xZrxOy/ZSM-5 Catalysts for the Self-Sustained Combustion of Carbon Monoxide[J]. COMBUSTION SCIENCE AND TECHNOLOGY,2017,189(8):1394-1415. |
| APA | Zhao RZ,Hao QL,宾峰,Kang RN,&Dou BJ.(2017).Influence of Ce/Zr Ratio on the Synergistic Effect over CuCe1-xZrxOy/ZSM-5 Catalysts for the Self-Sustained Combustion of Carbon Monoxide.COMBUSTION SCIENCE AND TECHNOLOGY,189(8),1394-1415. |
| MLA | Zhao RZ,et al."Influence of Ce/Zr Ratio on the Synergistic Effect over CuCe1-xZrxOy/ZSM-5 Catalysts for the Self-Sustained Combustion of Carbon Monoxide".COMBUSTION SCIENCE AND TECHNOLOGY 189.8(2017):1394-1415. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。