典型文献
SO42--modified La,Y-doped ceria-zirconia with high oxygen storage capacity and its application in Pd-only three-way catalysts
文献摘要:
As the oxygen redox ability shows great effects on the catalytic performances of ceria-zirconia based materials,many strategies have been utilized to improve the oxygen storage capacity.Here in this study,we report a simple and facile approach to prepare a SO42--modified La,Y-doped ceria-zirconia material(SO/CZLY-f)with high oxygen storage capacity.Due to the additional redox process between SO42-and S2-,oxygen storage capacity of SO/CZLY-f(745.3 μmol O2/g)is about 1.6 times higher than that of La,Y-doped ceria-zirconia material without SO42-modification.Moreover,the catalytic activities and stability of the corresponding Pd-only three-way catalyst were measured.Compared to that of Pd@CZLY-f,the operation window of CO,full conversion temperature of HC and NO over Pd@SO/CZLY-f are obviously widened and lowered,respectively.After aging treatment at 1100℃for 4 h,the superiority of aged Pd-loading composite is still maintained.
文献关键词:
中图分类号:
作者姓名:
Hao Wang;Yongke Hou;Yongqi Zhang;Meisheng Cui;Fang Chen;Xiaowei Huang;Juanyu Yang;Zongyu Feng
作者机构:
National Engineering Research Center for Rare Earth Materials,GRINM Group Corporation Limited,Beijing 100088,China;Grirem Hi-tech Co.,Ltd.,Langfang 065000,China;Grirem Advanced Materials Co.,Ltd.,Beijing 100088,China;Rare Earth Functional Materials(Xiong'an)Innovation Center Co.,Ltd.,Baoding 071700,China
文献出处:
引用格式:
[1]Hao Wang;Yongke Hou;Yongqi Zhang;Meisheng Cui;Fang Chen;Xiaowei Huang;Juanyu Yang;Zongyu Feng-.SO42--modified La,Y-doped ceria-zirconia with high oxygen storage capacity and its application in Pd-only three-way catalysts)[J].稀土学报(英文版),2022(05):737-744
A类:
CZLY
B类:
SO42,modified,La,doped,ceria,zirconia,oxygen,storage,capacity,its,application,Pd,only,three,way,catalysts,redox,shows,great,effects,catalytic,performances,materials,many,strategies,have,been,utilized,improve,Here,this,study,report,simple,facile,approach,prepare,Due,additional,process,between,S2,O2,about,times,higher,than,that,without,modification,Moreover,activities,stability,corresponding,measured,Compared,operation,window,full,conversion,temperature,HC,obviously,widened,lowered,respectively,After,aging,treatment,superiority,aged,loading,composite,still,maintained
AB值:
0.493091
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