典型文献
Enhancing low-temperature NH3-SCR performance of Fe-Mn/CeO2 catalyst by Al2O3 modification
文献摘要：
In the work, supported catalysts of FeOx and MnOx co-supported on aluminum-modified CeO2 was synthesized for low-temperature NH3-selective catalytic reduction (NH3-SCR) of NO. Impressively, the SCR activity of the obtained catalyst is markedly influenced by the adding amount of Al and the appropriate Ce/Al molar ratio is 1/2. The activity tests demonstrate that Fe-Mn/Ce1Al2 catalyst shows over 90％ NO conversion at 75-250 °C and exhibits better SO2 resistance compared to Fe-Mn/CeO2. Fe-Mn/Ce1Al2 shows the expected physicochemical characters of the ideal catalyst including the larger surface and increased active reaction active sites by controlling the amount of Al doping. Also, the better catalytic activity is well correlated with the present advantaged surface adsorption oxygen species, Mn4+species, Ce3+species and the enhanced reducibility of Fe-Mn/Ce1Al2, which is superior to the Fe-Mn/CeO2 catalyst. More importantly, we further demonstrate that the amount and strength of surface acid sites are improved by Al-doping and more active intermediates (monodentate nitrate) is generated during NH3-SCR reaction. This work provides certain insight into the rational creation of simple and practical denitration catalyst environmental purification.
文献关键词：
中图分类号：
作者姓名：
Lulu Li;Jiawei Ji;Wei Tan;Wang Song;Xin Wang;Xiaoqian Wei;Kai Guo;Wanyu Zhang;Changjin Tang;Lin Dong
作者机构：
School of Environmental and Chemical Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China;School of Chemistry and Chemical Engineering,Nanjing University,Nanjing 210093,China;School of Environment,Nanjing Normal University,Nanjing 210093,China;Jiangsu Key Laboratory of Vehicle Emissions Control,School of Environment,Center of Modern Analysis,Nanjing University,Nanjing 210093,China
文献出处：
引用格式：
[1]Lulu Li;Jiawei Ji;Wei Tan;Wang Song;Xin Wang;Xiaoqian Wei;Kai Guo;Wanyu Zhang;Changjin Tang;Lin Dong-.Enhancing low-temperature NH3-SCR performance of Fe-Mn/CeO2 catalyst by Al2O3 modification)[J].稀土学报（英文版）,2022(09):1454-1461
A类：
Ce1Al2,advantaged,Mn4+species,Ce3+species
B类：
Enhancing,low,temperature,NH3,SCR,performance,CeO2,by,Al2O3,modification,In,work,supported,catalysts,FeOx,MnOx,aluminum,modified,was,synthesized,selective,catalytic,reduction,Impressively,activity,obtained,markedly,influenced,adding,amount,appropriate,molar,tests,demonstrate,that,shows,over,conversion,exhibits,better,SO2,resistance,compared,expected,physicochemical,characters,ideal,including,larger,surface,increased,active,reaction,sites,controlling,doping,Also,well,correlated,present,adsorption,oxygen,enhanced,reducibility,which,superior,More,importantly,further,strength,acid,improved,more,intermediates,monodentate,nitrate,generated,during,This,provides,certain,insight,into,rational,creation,simple,practical,denitration,environmental,purification
AB值：
0.514638
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