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Synthesis, characterization and activity evaluation of Cu-based catalysts derived from layered double hydroxides (LDHs) for DeNO(x) reaction
Zhang, Yu-sheng1,2; Li, Changming1; Yu, Chao2; Tran, Tuyetsuong1; Guo, Feng1; Yang, Yunquan2; Yu, Jian1; Xu, Guangwen1
2017-12-15
发表期刊CHEMICAL ENGINEERING JOURNAL
ISSN1385-8947
卷号330期号:DEC页码:1082-1090
摘要

Catalytic filter for DeNO(x) reaction composed of practical ceramic filter and catalytic active component enables simultaneous removal of dusts and NOx and therefore is of great potential for industrial application. To find out catalytically active components for DeNO(x) reaction and concurrently which can be grown on ceramic filter by an in-situ method, the Cu-based catalysts derived from LDHs precursor with different promoters (Co, Ni, Zn, Mg) were synthesized. The results of catalytic activity evaluation showed Zn is the most suitable promoter. Then, the effect of the Cu/Zn ratio on the catalytic performance was examined. It was found that the (CuxZny)(2)Al-MMO with an Cu/Zn ratio of 4 exhibited the maximum NOx conversion of 80% at 240 degrees C and a NH3/NO ratio of 0.8. The addition of Zn could weaken the catalytic oxidation of ammonia (NH3-SCO) and then improve turnover frequency (TOF) of NOx reduction per Cu atom. The characterizations of the TEM and H-2-N2O titration to catalysts reveal that the addition of Zn helps the dispersity of CuO on the surface of the support. The H-2-TPR results further demonstrates that the added Zn species facilitate the reducibility of CuO species at low temperature. At last, in-situ growth of Cu-Zn-Al-LDHs on a practical ceramic filter for DeNO(x) reaction was first successfully carried out and the resulted catalytic filter showed a reasonably high DeNO(x) activity and strong bonding strength between catalyst and filter.

关键词Catalytic Filter Deno(x) Ldhs In-situ Growth
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.cej.2017.08.044
收录类别SCI
语种英语
关键词[WOS]COMBINED PARTICLE SEPARATION ; CERAMIC FILTER CANDLE ; IN-SITU SYNTHESIS ; SELECTIVE REDUCTION ; DIMETHYL OXALATE ; ETHYLENE-GLYCOL ; LOW-TEMPERATURE ; NO REDUCTION ; MG-AL ; REMOVAL
WOS研究方向Engineering
WOS类目Engineering, Environmental ; Engineering, Chemical
项目资助者Science and Technology Service Network Initiative of China(KFJ-SW-STS-149) ; International Science and Technology Cooperation Program of China(2016YFE0128300) ; Natural Science and Foundation of China(21601192) ; Japan Society for the Promotion of Science (JSPS)(P15758)
WOS记录号WOS:000414083300108
引用统计
被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/23377
专题多相复杂系统国家重点实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Xiangtan Univ, Sch Chem Engn, Xiangtan, Hunan 411105, Peoples R China
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GB/T 7714
Zhang, Yu-sheng,Li, Changming,Yu, Chao,et al. Synthesis, characterization and activity evaluation of Cu-based catalysts derived from layered double hydroxides (LDHs) for DeNO(x) reaction[J]. CHEMICAL ENGINEERING JOURNAL,2017,330(DEC):1082-1090.
APA Zhang, Yu-sheng.,Li, Changming.,Yu, Chao.,Tran, Tuyetsuong.,Guo, Feng.,...&Xu, Guangwen.(2017).Synthesis, characterization and activity evaluation of Cu-based catalysts derived from layered double hydroxides (LDHs) for DeNO(x) reaction.CHEMICAL ENGINEERING JOURNAL,330(DEC),1082-1090.
MLA Zhang, Yu-sheng,et al."Synthesis, characterization and activity evaluation of Cu-based catalysts derived from layered double hydroxides (LDHs) for DeNO(x) reaction".CHEMICAL ENGINEERING JOURNAL 330.DEC(2017):1082-1090.
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