DC Field | Value | Language |
---|---|---|
dc.contributor.author | Decyk, P | ko |
dc.contributor.author | Kim, DK | ko |
dc.contributor.author | Woo, Seong-Ihl | ko |
dc.date.accessioned | 2019-03-07T06:56:33Z | - |
dc.date.available | 2019-03-07T06:56:33Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2001-10 | - |
dc.identifier.citation | JOURNAL OF CATALYSIS, v.203, no.2, pp.369 - 374 | - |
dc.identifier.issn | 0021-9517 | - |
dc.identifier.uri | http://hdl.handle.net/10203/250853 | - |
dc.description.abstract | lX-ray photoelectron spectroscopy (XPS) in situ electron paramagnetic resonance (EPR), in situ Fourier transform infrared spectroscopy (FT-IR), SO2 temperature-programmed desorption (TPD), and reaction tests were performed to investigate the poisoning effect on the selective catalytic reaction of NO by i-butane over Fe/ZSM-5. Kinetic studies at 623 K, showed that the presence Of SO2 in the reaction mixture poisoned Fe/ZSM-5 irreversibly. XPS studies of Fe/ZSM-5 after reaction with SO2 at 623 K revealed the formation of sulfate species, which corresponds well to the SO2 TPD result. In situ EPR spectra showed that the lines arising from the distorted tetrahedral Fe3+ ions at g approximate to 5.8 and 6.5, which were known to be reactive species, disappeared and a new and sharp one at g approximate to 1.9978 assigned to paramagnetic coke species appeared. The preadsorption Of SO2 suppressed the formation of the IR bands arising from Fe-NO2 (1623 cm(-1)) and Fe-NO3 (1573 cm(-1)). On the basis of these results, SO2 deactivated Fe/ZSM-5 by suppressing the formation of Fe-NOy (y = 2, 3) complexes and promoting the formation of carbonaceous deposits, which resulted in consumption of the active Fe3+ sites. (C) 2001 Academic Press. | - |
dc.language | English | - |
dc.publisher | ACADEMIC PRESS INC ELSEVIER SCIENCE | - |
dc.subject | SELECTIVE CATALYTIC-REDUCTION | - |
dc.subject | IRON-OXIDE | - |
dc.subject | FEZSM-5 | - |
dc.subject | DEACTIVATION | - |
dc.subject | DURABILITY | - |
dc.subject | RESONANCE | - |
dc.subject | STABILITY | - |
dc.subject | MONOXIDE | - |
dc.subject | BEHAVIOR | - |
dc.subject | SULFUR | - |
dc.title | Poisoning effect of SO2 on NO reduction by i-butane over Fe/ZSM-5 prepared by sublimation method | - |
dc.type | Article | - |
dc.identifier.wosid | 000171973400011 | - |
dc.identifier.scopusid | 2-s2.0-0035950577 | - |
dc.type.rims | ART | - |
dc.citation.volume | 203 | - |
dc.citation.issue | 2 | - |
dc.citation.beginningpage | 369 | - |
dc.citation.endingpage | 374 | - |
dc.citation.publicationname | JOURNAL OF CATALYSIS | - |
dc.contributor.localauthor | Woo, Seong-Ihl | - |
dc.contributor.nonIdAuthor | Decyk, P | - |
dc.contributor.nonIdAuthor | Kim, DK | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | selective catalytic reduction | - |
dc.subject.keywordAuthor | Fe/ZSM-5 | - |
dc.subject.keywordAuthor | SO2 | - |
dc.subject.keywordAuthor | electron paramagnetic resonance | - |
dc.subject.keywordAuthor | infrared | - |
dc.subject.keywordAuthor | X-ray photoelectron spectroscopy | - |
dc.subject.keywordAuthor | temperature-programmed desorption | - |
dc.subject.keywordAuthor | sublimation | - |
dc.subject.keywordPlus | SELECTIVE CATALYTIC-REDUCTION | - |
dc.subject.keywordPlus | IRON-OXIDE | - |
dc.subject.keywordPlus | FEZSM-5 | - |
dc.subject.keywordPlus | DEACTIVATION | - |
dc.subject.keywordPlus | DURABILITY | - |
dc.subject.keywordPlus | RESONANCE | - |
dc.subject.keywordPlus | STABILITY | - |
dc.subject.keywordPlus | MONOXIDE | - |
dc.subject.keywordPlus | BEHAVIOR | - |
dc.subject.keywordPlus | SULFUR | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.