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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
Source PublicationCHEMICAL ENGINEERING JOURNAL
ISSN1385-8947
Volume330Issue:DECPages:1082-1090
Abstract

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.

KeywordCatalytic Filter Deno(x) Ldhs In-situ Growth
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.cej.2017.08.044
Indexed BySCI
Language英语
WOS KeywordCOMBINED PARTICLE SEPARATION ; CERAMIC FILTER CANDLE ; IN-SITU SYNTHESIS ; SELECTIVE REDUCTION ; DIMETHYL OXALATE ; ETHYLENE-GLYCOL ; LOW-TEMPERATURE ; NO REDUCTION ; MG-AL ; REMOVAL
WOS Research AreaEngineering
WOS SubjectEngineering, Environmental ; Engineering, Chemical
Funding OrganizationScience 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 IDWOS:000414083300108
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/23377
Collection多相复杂系统国家重点实验室
Affiliation1.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
Recommended Citation
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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