Effect of Ti4+ and Sn4+ co-incorporation on the catalytic performance of CeO2-MnOx catalyst for low temperature NH3-SCR

doi:10.1016/j.apsusc.2019.01.095

	Effect of Ti4+ and Sn4+ co-incorporation on the catalytic performance of CeO2-MnOx catalyst for low temperature NH3-SCR
	Chen, Li 1,2; Yao, Xiaojiang 1; Cao, Jun 1; Yang, Fumo 2,3; Tang, Changjin 4; Dong, Lin 4
刊名	Applied Surface Science
	2019
卷号	476 页码:283-292
ISSN号	01694332
DOI	10.1016/j.apsusc.2019.01.095
英文摘要	A novel Ti4+ and Sn4+ co-incorporated CeO2-MnOx based catalyst was synthesized by an inverse co-precipitation method with the purpose of inhibiting the formation of N2O and enhancing the NOx conversion of CeO2-MnOx catalyst for NH3-SCR at low temperature. The obtained catalysts were characterized by a series of XRD, Raman, N2-physisorption, NH3-TPD, H2-TPR, XPS, and in situ DRIFTS techniques in details. The experiment results suggested that CeO2-MnOx-TiO2-SnO2 (Ce-Mn-Ti-Sn) catalyst displayed the optimal catalytic performance with an enhancement of 30% compared with CeO2-MnOx (Ce-Mn) in the range of 225–275 °C. Moreover, the N2O formation was inhibited remarkably compared to Ce-Mn (152 ppm), and there was no N2O (0 ppm) detected even at 250 °C. This is linked to moderate weakening of redox property, more generation of acid sites, enhancement of acidic strength, as well as large amount of Ce3+, oxygen vacancies, and absorbed oxygen species, which are contributed to improving the chemical property of Ce-Mn-Ti-Sn catalyst, and further enhancing the catalytic performance and inhibiting the generation of N2O. © 2019 Elsevier B.V.
语种	英语
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/9821]
专题	中国科学院重庆绿色智能技术研究院
作者单位	1.Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing; 400714, China; 2.School of Urban Construction and Environmental Engineering, Chongqing University, Chongqing; 400045, China; 3.National Engineering Research Center for Flue Gas Desulfurization, School of Architecture and Environment, Sichuan University, Chengdu; 610065, China; 4.Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern Analysis, Nanjing University, Nanjing; 210093, China
推荐引用方式 GB/T 7714	Chen, Li,Yao, Xiaojiang,Cao, Jun,et al. Effect of Ti4+ and Sn4+ co-incorporation on the catalytic performance of CeO2-MnOx catalyst for low temperature NH3-SCR[J]. Applied Surface Science,2019,476:283-292.
APA	Chen, Li,Yao, Xiaojiang,Cao, Jun,Yang, Fumo,Tang, Changjin,&Dong, Lin.(2019).Effect of Ti4+ and Sn4+ co-incorporation on the catalytic performance of CeO2-MnOx catalyst for low temperature NH3-SCR.Applied Surface Science,476,283-292.
MLA	Chen, Li,et al."Effect of Ti4+ and Sn4+ co-incorporation on the catalytic performance of CeO2-MnOx catalyst for low temperature NH3-SCR".Applied Surface Science 476(2019):283-292.