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Novel Fe-W-Ce Mixed Oxide for the Selective Catalytic Reduction of NOx with NH3 at Low Temperatures
Stahl, Anna1,2; Wang, Zhong1; Schwaemmle, Tobias2; Ke, Jun3; Li, Xuebing1
2017-02-01
发表期刊CATALYSTS
卷号7期号:2
摘要A set of novel iron doped cerium-tungsten catalysts were prepared by sol-gel method with a view to their application for low temperature selective catalytic reduction (SCR) of NOx with NH3 in power plants. With a molar ratio Fe/W/Ce of 0.5:1:1, a NOx reduction of >90% at 200 degrees C was achieved. In Fe-W-Ce catalysts with low iron oxide content, it was found that the iron compounds were highly dispersed and formed a solid solution within the cerium oxide lattice, which promoted the SCR activity. Large amounts of iron in the catalysts might form a layer of Fe2O3 on the catalyst surface, which induced the synergistic inhibition effect among Fe, Ce and W species. Moreover, the Fe-W-Ce catalysts possessed a high resistance to changed operation parameters as well as to deactivation by SO2 and/or H2O. The novel catalyst showed to be competitive among recently developed low-temperature SCR catalysts.
文章类型Article
关键词Fe-w-ce Scr Synergistic Effect High Resistance Competitive
WOS标题词Science & Technology ; Physical Sciences
DOI10.3390/catal7020071
关键词[WOS]SCR CATALYST ; CEO2-WO3 CATALYSTS ; CERIA ; IRON ; OXIDATION ; AMMONIA ; CO ; PERFORMANCE ; ADSORPTION ; RESISTANCE
收录类别SCI
语种英语
WOS研究方向Chemistry
项目资助者National Natural Science Foundation of China(21607162 ; Doctoral Fund of Shandong Province(BS2015HZ003) ; Qingdao Indigenous Innovation Program(16-5-1-27-jch) ; Open Foundation of Key Laboratory of Industrial Ecology and Environmental Engineering, MOE(KLIEEE-15-05) ; 21276263 ; 21506239)
WOS类目Chemistry, Physical
WOS记录号WOS:000395436800036
引用统计
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/9307
专题多相催化转化研究组
作者单位1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuels, Qingdao 266101, Peoples R China
2.Univ Stuttgart, Inst Combust & Power Plant Technol, D-70569 Stuttgart, Germany
3.Wuhan Inst Technol, Sch Chem & Environm Engn, Wuhan 430205, Peoples R China
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Stahl, Anna,Wang, Zhong,Schwaemmle, Tobias,et al. Novel Fe-W-Ce Mixed Oxide for the Selective Catalytic Reduction of NOx with NH3 at Low Temperatures[J]. CATALYSTS,2017,7(2).
APA Stahl, Anna,Wang, Zhong,Schwaemmle, Tobias,Ke, Jun,&Li, Xuebing.(2017).Novel Fe-W-Ce Mixed Oxide for the Selective Catalytic Reduction of NOx with NH3 at Low Temperatures.CATALYSTS,7(2).
MLA Stahl, Anna,et al."Novel Fe-W-Ce Mixed Oxide for the Selective Catalytic Reduction of NOx with NH3 at Low Temperatures".CATALYSTS 7.2(2017).
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