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DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 23 | - |
dc.citation.number | 30 | - |
dc.citation.startPage | 16 | - |
dc.citation.title | CATALYSIS TODAY | - |
dc.citation.volume | 205 | - |
dc.contributor.author | Zhu, Haiyang | - |
dc.contributor.author | Kwak, Jahun | - |
dc.contributor.author | Peden, Charles H. F. | - |
dc.contributor.author | Szanyi, Janos | - |
dc.date.accessioned | 2023-12-22T04:08:07Z | - |
dc.date.available | 2023-12-22T04:08:07Z | - |
dc.date.created | 2014-09-24 | - |
dc.date.issued | 2013-04 | - |
dc.description.abstract | DRIFT spectroscopy combined with mass spectrometry was used to investigate the oxidation of adsorbed ammonia by NO2, NO + O-2 and NO2 + O-2 on a copper ion exchanged SSZ-13 (Cu-SSZ-13) zeolite. Compared with both NO2 and NO, the adsorption of ammonia is much stronger on the Cu-SSZ-13 zeolite. Two adsorbed ammonia species were found over the Cu-SSZ-13 zeolite studied here, notably ammonia on Bronsted acid sites (proton) and ammonia on Lewis acid sites (copper ions). These adsorbed ammonia species present different activity profiles and selectivity to N-2 during NH3 oxidation. The results obtained suggest that ammonia adsorbed onto copper ions in Cu-SSZ-13 is more active at low temperatures than proton-adsorbed NH3, and give rise to a higher selectivity to N-2. The formation of N2O is associated primarily with the reaction of NOx with proton-adsorbed NH3 via the formation and subsequent thermal decomposition of NH4NO3. Published by Elsevier B.V. | - |
dc.identifier.bibliographicCitation | CATALYSIS TODAY, v.205, no.30, pp.16 - 23 | - |
dc.identifier.doi | 10.1016/j.cattod.2012.08.043 | - |
dc.identifier.issn | 0920-5861 | - |
dc.identifier.scopusid | 2-s2.0-84875224616 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/6434 | - |
dc.identifier.url | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84875224616 | - |
dc.identifier.wosid | 000316791700004 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.title | In situ DRIFTS-MS studies on the oxidation of adsorbed NH3 by NOx over a Cu-SSZ-13 zeolite | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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