Effect of Ce Doping on Catalytic Performance of Cu/TiO2 for CO Oxidation
文献类型：期刊论文
| 作者 | Li, Chaoqun1,3; Yang, Yang1; Ren, Wei1,4; Wang, Jian1; Zhu, Tingyu1,2; Xu, Wenqing1,2 |
| 刊名 | CATALYSIS LETTERS
 |
| 出版日期 | 2020-02-07 |
| 页码 | 11 |
| 关键词 | CO oxidation One-step impregnation Ce doping Mars and van krevelen Surface oxygen |
| ISSN号 | 1011-372X |
| DOI | 10.1007/s10562-020-03130-1 |
| 英文摘要 | CO is toxic and detrimental to human beings and the atmosphere. The presence of CO has become one of the important indicators for evaluating ambient air quality. Iron and steel sintering generate large amounts of flue gas emissions containing approximately 1% CO, which has become an important factor restricting the improvement of air quality in steel cities. The catalytic oxidation method is the simplest and most effective method for CO emission control. In this work, a series of CuxCey/TiO2 catalysts with different Ce doping levels were prepared by a one-step impregnation method and subsequently tested for catalytic CO oxidation. The Cu0.5Ce0.5/TiO2 sample has the best catalytic activity under the conditions of 1% CO and 10% H2O. The catalysts were next characterized by XRD, BET, TEM, H-2-TPR, XPS and in-situ DRIFTS methods. The characterization results show that Ce doping promotes the dispersion of copper species on the catalyst surface and improve the redox performance of the catalyst. The results of in-situ experiments showed that both Cu/TiO2 and Cu0.5Ce0.5/TiO2 catalysts followed Mars and van Krevelen mechanism, and Ce doping enhanced the adsorption and activation of oxygen, thus improving the low-temperature reaction activity of the catalysts. [GRAPHICS] . |
| WOS关键词 | COPPER-OXIDE ; IN-SITU ; MIXED-OXIDE ; TEMPERATURE ; CERIA ; TITANIA ; REDUCTION ; CUO/TIO2 ; SCIENCE ; NO |
| 资助项目 | National Key Research and Development Program of China[2017YFC0210304] ; Hebei Science and Technology Major Special Projects[19074013Z] ; National Natural Science Foundation of China[51938014] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000515949200002 |
| 出版者 | SPRINGER |
| 资助机构 | National Key Research and Development Program of China ; Hebei Science and Technology Major Special Projects ; National Natural Science Foundation of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/39608]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Xu, Wenqing |
| 作者单位 | 1.Chinese Acad Sci, Natl Engn Lab Hydromet Cleaner Prod Technol, Inst Proc Engn, Res Ctr Proc Pollut Control, 1,2nd North Lane, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.North Univ China, Sch Chem & Technol, Taiyuan 030051, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Chaoqun,Yang, Yang,Ren, Wei,et al. Effect of Ce Doping on Catalytic Performance of Cu/TiO2 for CO Oxidation[J]. CATALYSIS LETTERS,2020:11. |
| APA | Li, Chaoqun,Yang, Yang,Ren, Wei,Wang, Jian,Zhu, Tingyu,&Xu, Wenqing.(2020).Effect of Ce Doping on Catalytic Performance of Cu/TiO2 for CO Oxidation.CATALYSIS LETTERS,11. |
| MLA | Li, Chaoqun,et al."Effect of Ce Doping on Catalytic Performance of Cu/TiO2 for CO Oxidation".CATALYSIS LETTERS (2020):11. |
入库方式： OAI收割
来源：过程工程研究所
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