典型文献
Synergistic effect of cobalt and niobium in Co3-Nb-Ox on performance of selective catalytic reduction of NO with NH3
文献摘要：
Combining the redox properties of Co and the acid properties of Nb in a Co3-Nb-Ox catalyst is shown to provide superior performance in the selective catalytic reduction of NO with NH3 (NH3-SCR).Co3O4 shows average activity,however,it exhibits a poor N2 selectivity.Nb2O5 is not active for NH3-SCR.However,the mixed Co3-Nb-Ox catalyst shows higher NO conversion and N2 selectivity than the single Co3O4 and Nb2O5 catalysts at 100-300 ℃.The results of temperature programmed reduction by H2 and X-ray photoelectron (XP) spectra indicate that the addition of Nb changes the chemical states of Co and decreases the concentration of Co3+ and Oα,adjusting the activity for catalytic oxidation to a moderate level.This suppresses the formation of undesired N2O from the over-oxidation of NH3.Incorporation of Co and Nb into one solid synergistically couples their redox behavior and surface acidity,ensuring the high catalytic activity and N2 selectivity in NH3-SCR.
文献关键词：
中图分类号：
作者姓名：
Bo-Lin Zhang;Li-Feng Deng;Bo Liu;Chun-Yun Luo;Michael Liebau;Shen-Gen Zhang;Roger Gl(a)iser
作者机构：
Institute for Advanced Materials and Technology,University of Science and Technology Beijing,Beijing 100083,China;Shunde Graduate School,University of Science and Technology Beijing,Foshan 528399,China;Jiangsu Longkingcotech Co.,Ltd.,Yancheng 224000,China;Institute of Chemical Technology,Universit(a)t Leipzig,Leipzig 04103,Germany
文献出处：
引用格式：
[1]Bo-Lin Zhang;Li-Feng Deng;Bo Liu;Chun-Yun Luo;Michael Liebau;Shen-Gen Zhang;Roger Gl(a)iser-.Synergistic effect of cobalt and niobium in Co3-Nb-Ox on performance of selective catalytic reduction of NO with NH3)[J].稀有金属（英文版）,2022(01):166-178
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B类：
Synergistic,effect,cobalt,niobium,Ox,performance,selective,catalytic,reduction,NH3,Combining,redox,properties,shown,provide,superior,SCR,Co3O4,shows,average,activity,however,exhibits,poor,selectivity,Nb2O5,not,active,However,mixed,higher,conversion,than,single,catalysts,results,temperature,programmed,by,H2,ray,photoelectron,XP,spectra,indicate,that,addition,changes,chemical,states,decreases,concentration,Co3+,adjusting,oxidation,moderate,level,This,suppresses,formation,undesired,N2O,from,over,Incorporation,into,one,solid,synergistically,couples,their,behavior,surface,acidity,ensuring
AB值：
0.52989
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