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dc.contributor.authorHui, Kwan-San-
dc.date.accessioned2017-02-21T06:23:41Z-
dc.date.available2017-02-21T06:23:41Z-
dc.date.issued2015-06-
dc.identifier.citationCHEMICAL ENGINEERING JOURNAL, v. 270, Page. 549-556en_US
dc.identifier.issn1385-8947-
dc.identifier.issn1873-3212-
dc.identifier.urihttp://www.sciencedirect.com/science/article/pii/S138589471500176X-
dc.identifier.urihttp://hdl.handle.net/20.500.11754/25582-
dc.description.abstractThe CuCe/ZSM-5 catalysts with different cerium loadings (0, 0.5, 1.0, 1.5 and 2.0 wt.%) was investigated to evaluate the correlation between structural characteristics and catalytic performance for the selective catalytic reduction (SCR) of NO by NH3. It was found that the addition of cerium increased copper dispersion and prevented its crystallitation. According to the results of X-ray photoelectron spectroscopy (XPS) and temperature-programmed reduction by hydrogen (H-2-TPR), copper species were enriched on the ZSM-5 grain surfaces and part of copper ions was incorporated into the cerium lattice. Addition of cerium improved the redox properties of the CuCe/ZSM-5 catalysts, owing to the higher valence of copper and mobility of lattice oxygen than those of Cu/ZSM-5 catalyst. Hence the introduction of cerium in Cu/ZSM-5 improved significantly NO conversion. On the one hand, the cerium introduction into Cu-Z enhances their low-temperature activities. 95% NO conversion is reached around 197 degrees C for Cu-Z while the corresponding temperature value decreases to 148 degrees C for CuCe4-Z. On the other hand, the temperature range of efficient NO reduction (95%) also extends to higher temperature when the cerium are added to Cu/ZSM-5. Among the Cu-Ce/ZSM-5 catalysts tested, the CuCe4-Z sample exhibits the highest catalytic activity with the temperature range for 90% NO removal of 148-427 degrees C. (C) 2015 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipThis study was supported by the National Natural Science Foundation of China (21307088, 51206119) and the Tianjin Research Program of Application Foundation and Advanced Technology (10JCZDJC24900).en_US
dc.language.isoenen_US
dc.publisherELSEVIER SCIENCE SAen_US
dc.subjectSelective catalytic reductionen_US
dc.subjectCuCe/ZSM-5 catalysten_US
dc.subjectNitrogen oxideen_US
dc.subjectAmmoniaen_US
dc.titleCerium doped copper/ZSM-5 catalysts used for the selective catalytic reduction of nitrogen oxide with ammoniaen_US
dc.typeArticleen_US
dc.relation.volume270-
dc.identifier.doi10.1016/j.cej.2015.02.004-
dc.relation.page549-556-
dc.relation.journalCHEMICAL ENGINEERING JOURNAL-
dc.contributor.googleauthorDou, Baojuan-
dc.contributor.googleauthorLv, Gang-
dc.contributor.googleauthorWang, Chang-
dc.contributor.googleauthorHao, Qinglan-
dc.contributor.googleauthorHui, Kwansan-
dc.relation.code2015002681-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDIVISION OF MECHANICAL ENGINEERING-
dc.identifier.pidkshui-
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COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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