典型文献
Sm-MnOx catalysts for low-temperature selective catalytic reduction of NOx with NH3:Effect of precipitation agent
文献摘要:
A series of Sm-Mn mixed oxide catalysts were prepared via precipitation using various precipitants,namely Na2CO3(NH4)2CO3,and NH3·H2O,and evaluated for the selective catalytic reduction(SCR)of NOx with NH3 at low temperatures.Various characterisation techniques were used to determine the physi-cochemical properties of the catalysts,and it is found that their catalytic performance is greatly influ-enced by the nature of the precipitation agent used.It is found that Sm0.1Mn-Na2CO3 and Sm0.1Mn-(NH4)2CO3 exhibit superior catalytic performance in the SCR reaction to that of Sm0.1Mn-NH3 H2O due to an abundance of surface acid sites,high surface concentration of Mn4+,and high NO oxidation ca-pacity.From in situ diffuse reflectance infrared Fourier transform spectroscopy(DRIFT)analysis,we conclude that the Sm-Mn catalysts follow both Eley-Rideal and Langmuir-Hinshelwood mechanisms,and that the Eley-Rideal mechanism is dominant at elevated temperatures.
文献关键词:
中图分类号:
作者姓名:
Junbin Ding;Xinwei Yang;Aiyong Wang;Can Yang;Yanglong Guo;Yun Guo;Li Wang;Wangcheng Zhan
作者机构:
Key Laboratory for Advanced Materials and Research Institute of Industrial Catalysis,School of Chemistry&Molecular Engineering,East China University of Science and Technology,Shanghai 200237,China;Hudong Heavy Machinery Co.,Ltd.,Shanghai 200237,China;International Joint Laboratory of Catalytic Chemistry,Department of Chemistry,Research Center of Nano Science and Technology,College of Sciences,Shanghai University,Shanghai 200444,China;State Key Laboratory of Photocatalysis on Energy and Environment,College of Chemistry,Fuzhou University,Fuzhou 350108,China
文献出处:
引用格式:
[1]Junbin Ding;Xinwei Yang;Aiyong Wang;Can Yang;Yanglong Guo;Yun Guo;Li Wang;Wangcheng Zhan-.Sm-MnOx catalysts for low-temperature selective catalytic reduction of NOx with NH3:Effect of precipitation agent)[J].稀土学报(英文版),2022(08):1199-1210
A类:
precipitants,cochemical
B类:
MnOx,catalysts,selective,catalytic,reduction,NOx,NH3,Effect,precipitation,agent,series,mixed,oxide,were,prepared,via,using,various,namely,Na2CO3,NH4,H2O,evaluated,SCR,temperatures,Various,characterisation,techniques,used,determine,physi,properties,found,that,their,performance,greatly,influ,enced,by,nature,It,Sm0,1Mn,exhibit,superior,reaction,due,abundance,surface,acid,sites,high,concentration,Mn4+,oxidation,pacity,From,situ,diffuse,reflectance,infrared,Fourier,transform,spectroscopy,DRIFT,analysis,conclude,follow,both,Eley,Rideal,Langmuir,Hinshelwood,mechanisms,dominant,elevated
AB值:
0.513717
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