Influence of preparation methods of supports on the deNO(x) performance and alkali-metal resistance over TiO2/CeO2 catalysts in NH3-SCR reaction
文献类型：期刊论文
| 作者 | Yao, Xiaojiang1,2,3 ; Zhao, Wanxia1,3; Rong, Jing1,3; Luo, Wen1,2; Kang, Keke1,2; Long, Lulu1,3; Chen, Yang1,2
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| 刊名 | FUEL
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| 出版日期 | 2022-07-15 |
| 卷号 | 320页码:11 |
| 关键词 | NH3-SCR reaction TiO2/CeO2 catalysts Supports Preparation methods Anti-K poisoning |
| ISSN号 | 0016-2361 |
| DOI | 10.1016/j.fuel.2022.123920 |
| 通讯作者 | Yao, Xiaojiang(yaoxj@cigit.ac.cn) |
| 英文摘要 | Two kinds of CeO2 supports were synthesized by precipitation method and hydrothermal method, respectively, and then TiO2 species were loaded on their surface to prepare two TiO2/CeO2 catalysts (abbreviated as Ti/Ce-PM and Ti/Ce-HM). Experimental results show that Ti/Ce-PM and Ti/Ce-HM catalysts exhibit irregular nanoparticle morphology and specific tubular morphology, respectively, while the deNO(x) performance and anti-K poisoning ability of Ti/Ce-HM catalyst are worse than those of Ti/Ce-PM catalyst, which suggests that the random loading of TiO2 species on the tubular CeO(2 )support doesn't enhance the deNOx performance and alkali-metal resistance. However, physicochemical property characterizations display that the excellent deNO(x) performance of Ti/Ce-PM catalyst can be attributed to better dispersion of TiO2 species, more excellent redox performance and surface acidity (especially B acid), larger Ce3+ content and O alpha ratio, stronger electron interaction between Ce and Ti through the redox cycle of Ce3+ + Ti4+ ? Ce4+ + Ti3+, as well as easier desorption and decomposition of the adsorbed NOx species. Furthermore, stronger anti-K poisoning ability of Ti/Ce-PM catalyst results from that the negative impact of K2O species on the redox performance, surface acidity, Ce3+ content, and O alpha ratio of Ti/Ce-PM catalyst is smaller than that on Ti/Ce-HM catalyst. |
| 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 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000806802900002 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/16299]  |
| 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.Chinese Acad Sci, Res Ctr Atmospher Environm, Chongqing Inst Green & Intelligent Technol, Key Lab Reservoir Aquat Environm CAS, Chongqing 400714, Peoples R China 2.Univ Chinese Acad Sci UCAS Chongqing, Coll Resources & Environm, Chongqing Sch, Chongqing 400714, Peoples R China 3.Chongqing Technol & Business Univ, Coll Environm & Resources, Chongqing Key Lab Catalysis & New Environm Mat, Chongqing 400067, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yao, Xiaojiang,Zhao, Wanxia,Rong, Jing,et al. Influence of preparation methods of supports on the deNO(x) performance and alkali-metal resistance over TiO2/CeO2 catalysts in NH3-SCR reaction[J]. FUEL,2022,320:11. |
| APA | Yao, Xiaojiang.,Zhao, Wanxia.,Rong, Jing.,Luo, Wen.,Kang, Keke.,...&Chen, Yang.(2022).Influence of preparation methods of supports on the deNO(x) performance and alkali-metal resistance over TiO2/CeO2 catalysts in NH3-SCR reaction.FUEL,320,11. |
| MLA | Yao, Xiaojiang,et al."Influence of preparation methods of supports on the deNO(x) performance and alkali-metal resistance over TiO2/CeO2 catalysts in NH3-SCR reaction".FUEL 320(2022):11. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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