A copper-impregnated BEA zeolite for adsorption and oxidation of aromatic species during vehicle cold starts
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jang, E. | - |
dc.contributor.author | Choi, L. | - |
dc.contributor.author | Kim, J. | - |
dc.contributor.author | Jeong, Y. | - |
dc.contributor.author | Baik, H. | - |
dc.contributor.author | Kang, C.Y. | - |
dc.contributor.author | Kim, C.H. | - |
dc.contributor.author | Lee, K.-Y. | - |
dc.contributor.author | Choi, J. | - |
dc.date.accessioned | 2021-12-02T02:41:44Z | - |
dc.date.available | 2021-12-02T02:41:44Z | - |
dc.date.created | 2021-08-31 | - |
dc.date.issued | 2021-06-15 | - |
dc.identifier.issn | 0926-3373 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/128780 | - |
dc.description.abstract | In this study, we prepared an effective cold-start hydrocarbon (HC) trap by impregnating BEA zeolites with copper. The resulting Cu-impregnated BEA zeolites allowed for effective HC trapping and, more desirably, low-temperature HC oxidation. An optimal Cu content (∼5 wt%) resulted in the highest cold-start test (CST) performance with respect to two representatives HCs, propene and toluene. The preferential adsorption of propene under wet conditions was key to achieving high efficiency (∼79 %). We found that the presence of Cu+ ions allowed the preferential adsorption of HCs, especially propene, and the CuO particles on the exterior surface (∼1−2 nm in size) could oxidize HCs at low temperatures (starting from ∼210 °C). Finally, a severe hydrothermal treatment at 800 °C was used to simulate long-term driving; the CST performance revealed that the adsorption ability for propene was dramatically decreased, whereas those of toluene, along with the oxidation ability, were still preserved. © 2021 Elsevier B.V. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | Elsevier B.V. | - |
dc.subject | Aliphatic compounds | - |
dc.subject | Copper | - |
dc.subject | Copper oxides | - |
dc.subject | Oxidation | - |
dc.subject | Propylene | - |
dc.subject | Temperature | - |
dc.subject | Toluene | - |
dc.subject | Zeolites | - |
dc.subject | Adsorption ability | - |
dc.subject | Aromatic species | - |
dc.subject | Exterior surfaces | - |
dc.subject | High-efficiency | - |
dc.subject | Hydrothermal treatments | - |
dc.subject | Low temperatures | - |
dc.subject | Preferential adsorption | - |
dc.subject | Wet conditions | - |
dc.subject | Adsorption | - |
dc.title | A copper-impregnated BEA zeolite for adsorption and oxidation of aromatic species during vehicle cold starts | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, K.-Y. | - |
dc.identifier.doi | 10.1016/j.apcatb.2021.119951 | - |
dc.identifier.scopusid | 2-s2.0-85100426225 | - |
dc.identifier.wosid | 000632997700005 | - |
dc.identifier.bibliographicCitation | Applied Catalysis B: Environmental, v.287 | - |
dc.relation.isPartOf | Applied Catalysis B: Environmental | - |
dc.citation.title | Applied Catalysis B: Environmental | - |
dc.citation.volume | 287 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.subject.keywordPlus | Aliphatic compounds | - |
dc.subject.keywordPlus | Copper | - |
dc.subject.keywordPlus | Copper oxides | - |
dc.subject.keywordPlus | Oxidation | - |
dc.subject.keywordPlus | Propylene | - |
dc.subject.keywordPlus | Temperature | - |
dc.subject.keywordPlus | Toluene | - |
dc.subject.keywordPlus | Zeolites | - |
dc.subject.keywordPlus | Adsorption ability | - |
dc.subject.keywordPlus | Aromatic species | - |
dc.subject.keywordPlus | Exterior surfaces | - |
dc.subject.keywordPlus | High-efficiency | - |
dc.subject.keywordPlus | Hydrothermal treatments | - |
dc.subject.keywordPlus | Low temperatures | - |
dc.subject.keywordPlus | Preferential adsorption | - |
dc.subject.keywordPlus | Wet conditions | - |
dc.subject.keywordPlus | Adsorption | - |
dc.subject.keywordAuthor | After-treatment | - |
dc.subject.keywordAuthor | Cold-start test | - |
dc.subject.keywordAuthor | Copper species | - |
dc.subject.keywordAuthor | Hydrocarbon oxidation | - |
dc.subject.keywordAuthor | Hydrocarbon trap | - |
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