Enhanced activity of tungsten modified CeO2/TiO2 for selective catalytic reduction of NOx with ammonia
文献类型：会议论文
| 作者 | Chen, Liang1,2,4; Li, Junhua1; Ge, Maofa2; Zhu, Ronghai3 |
| 出版日期 | 2010-08-01 |
| 关键词 | Reduction - Nitrogen oxides - Binary alloys - Catalyst activity - Ammonia - Tungsten compounds - Ternary alloys - Impregnation - Selective catalytic reduction |
| 卷号 | 153 |
| 期号 | 2023-03-04 |
| DOI | 10.1016/j.cattod.2010.01.062 |
| 页码 | 77-83 |
| 英文摘要 | A series of W-doped CeO2/TiO2 catalysts prepared by different impregnation methods assisted with ultrasonic energy were investigated for the selective catalytic reduction (SCR) of NOx (NO and NO2) by NH3. The activity of the CeO2/TiO2 catalyst was enhanced by the addition of W with all the methods, while the promotional effect was pronounced for catalyst prepared by co-impregnation method. The catalytic activity of 10% CeO2/TiO2 (CeTi) was greatly enhanced by the addition of 6% WO3 in the broad temperature range of 200-500 掳C. BET, XRD, XPS and TPD methods revealed that the co-impregnation method could make CeO2 and WO3 crystallites disperse better over the catalyst surface, and much stronger interaction happened between Ce and W for the more appearance of Ce3+. The addition of tungsten could bring more ad-NOx and ad-NH3 adsorption species, and simultaneously enhanced the catalytic activity for NH3-SCR of NOx. 漏 2010 Elsevier B.V. |
| 项目编号 | This work was financially supported by the National High-Tech Research and Development (863) Program of China (Grant Nos. 2007AA0618023 and 2006AA06A304 ). |
| 资助机构 | Elsevier B.V., Netherlands |
| 学科主题 | Cerium Oxide |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/59562]  |
| 作者单位 | 1.Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China 2.State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China 3.State Key Laboratory of Multi-phase Complex System, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China 4.Graduate University, Chinese Academy of Sciences, Beijing 100039, China |
| 推荐引用方式 GB/T 7714 | Chen, Liang,Li, Junhua,Ge, Maofa,et al. Enhanced activity of tungsten modified CeO2/TiO2 for selective catalytic reduction of NOx with ammonia[C]. 见:. |
入库方式： OAI收割
来源：过程工程研究所
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