Enhancing the K-poisoning resistance of CeO2-SnO2 catalyst by hydrothermal method for NH3-SCR reaction
文献类型：期刊论文
| 作者 | Zhao, Wanxia1,2,3; Rong, Jing1,2,3; Luo, Wen2,3; Long, Lulu1,2,3; Yao, Xiaojiang1,2,3
|
| 刊名 | APPLIED SURFACE SCIENCE
 |
| 出版日期 | 2022-03-30 |
| 卷号 | 579页码:13 |
| 关键词 | CeO2-SnO2 Hydrothermal method Resistance to K-poisoning NH (3 )-SCR Reaction mechanism |
| ISSN号 | 0169-4332 |
| DOI | 10.1016/j.apsusc.2021.152176 |
| 通讯作者 | Yao, Xiaojiang(yaoxj@cigit.ac.cn) |
| 英文摘要 | It is a very challenging task to improve the anti-alkali metal poisoning ability of non-vanadium-based denitration catalysts. To address this issue, we attempt to synthesize CeO2-SnO2 catalyst by hydrothermal method (denoted as CS-HT), which uses high temperature and high pressure environment of hydrothermal process to promote the distribution of Sn4+ in CeO2 lattice and enhance the interaction between each component. For comparison, CeO2SnO2 catalyst was also prepared by co-precipitation method (denoted as CS-CP). The denitration activity and resistance to K-poisoning performance of these prepared catalysts for the selective catalytic reduction of nitrogen oxides by ammonia (NH3-SCR) were studied. The results showed that CS-HT catalyst had better denitration activity and anti-K poisoning performance than CS-CP catalyst. The physicochemical properties of these catalysts were characterized by XRD, Raman, XPS, H2-TPR, NH3-TPD. Experimental results indicated that the enhancement of anti-K poisoning ability of CS-HT catalyst was related to the good distribution of Sn4+, excellent redox performance and surface acidity. Moreover, the Sn-O bonds could combine with the introduced K more easily, which protected the Ce-O active sites. Finally, the possible NH3-SCR reaction mechanism and K-poisoning reasons on CeO2-SnO2 catalyst were analyzed by in-situ DRIFTS experiments. |
| 资助项目 | National Natural Science Foundation of China[21876168] ; National Natural Science Foundation of China[22076180] ; Youth Innovation Promotion Association of CAS[2019376] ; Chongqing Bayu Scholar Program[YS2020048] |
| WOS研究方向 | Chemistry ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000736688700005 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/14955]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Yao, Xiaojiang |
| 作者单位 | 1.Chongqing Technol & Business Univ, Coll Environm & Resources, Chongqing Key Lab Catalysis & New Environm Mat, Chongqing 400067, Peoples R China 2.Chinese Acad Sci, Res Ctr Atmospher Environm, Chongqing Inst Green & Intelligent Technol, Key Lab Reservoir Aquat Environm CAS, Chongqing 400714, Peoples R China 3.Univ Chinese Acad Sci UCAS Chongqing, Chongqing Sch, Coll Resources & Environm, Chongqing 400714, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Wanxia,Rong, Jing,Luo, Wen,et al. Enhancing the K-poisoning resistance of CeO2-SnO2 catalyst by hydrothermal method for NH3-SCR reaction[J]. APPLIED SURFACE SCIENCE,2022,579:13. |
| APA | Zhao, Wanxia,Rong, Jing,Luo, Wen,Long, Lulu,&Yao, Xiaojiang.(2022).Enhancing the K-poisoning resistance of CeO2-SnO2 catalyst by hydrothermal method for NH3-SCR reaction.APPLIED SURFACE SCIENCE,579,13. |
| MLA | Zhao, Wanxia,et al."Enhancing the K-poisoning resistance of CeO2-SnO2 catalyst by hydrothermal method for NH3-SCR reaction".APPLIED SURFACE SCIENCE 579(2022):13. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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。