DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Beom-Sik | ko |
dc.contributor.author | Jeong, Hojin | ko |
dc.contributor.author | Bae, Junemin | ko |
dc.contributor.author | Kim, Pyung Soon | ko |
dc.contributor.author | Kim, Chang Hwan | ko |
dc.contributor.author | Lee, Hyunjoo | ko |
dc.date.accessioned | 2020-05-07T06:20:08Z | - |
dc.date.available | 2020-05-07T06:20:08Z | - |
dc.date.created | 2020-05-06 | - |
dc.date.created | 2020-05-06 | - |
dc.date.created | 2020-05-06 | - |
dc.date.created | 2020-05-06 | - |
dc.date.created | 2020-05-06 | - |
dc.date.created | 2020-05-06 | - |
dc.date.issued | 2020-08 | - |
dc.identifier.citation | APPLIED CATALYSIS B-ENVIRONMENTAL, v.270, pp.118871 | - |
dc.identifier.issn | 0926-3373 | - |
dc.identifier.uri | http://hdl.handle.net/10203/274130 | - |
dc.description.abstract | A combination of the Pt-BaO/CeO2 and Cu/CeO2 (PBC + CC) catalyst offers high NOx storage and reduction (NSR) performance at low temperatures; however, the PBC + CC catalyst is prone to deactivation upon hydrothermal aging. In this study, we used a reduced gamma-Al2O3 support with unsaturated penta-coordinated Al3+ sites, which can anchor catalytic materials (Pt, Cu, BaO, and CeO2). The physical mixture of Pt-BaO-CeO2 and Cu-CeO2 deposited on the reduced Al2O3 (PBCrA + CCrA) was prepared and tested for the NOx removal. The PBCrA + CCrA catalyst showed little degradation after hydrothermal aging at 750 degrees C. XRD, HR-TEM, CO chemisorption, N2O chemisorption, and N-2 physisorption results showed that catalytically active phases were barely changed even after the hydrothermal aging, particularly preventing ceria sintering. CO-TPR and XPS results demonstrated that the PBCrA + CCrA catalyst has a superior reducibility of lattice oxygen on CeO2, leading to excellent low-temperature activity. | - |
dc.language | English | - |
dc.publisher | ELSEVIER | - |
dc.title | Lean NOx trap catalysts with high low-temperature activity and hydrothermal stability | - |
dc.type | Article | - |
dc.identifier.wosid | 000526110500026 | - |
dc.identifier.scopusid | 2-s2.0-85081231117 | - |
dc.type.rims | ART | - |
dc.citation.volume | 270 | - |
dc.citation.beginningpage | 118871 | - |
dc.citation.publicationname | APPLIED CATALYSIS B-ENVIRONMENTAL | - |
dc.identifier.doi | 10.1016/j.apcatb.2020.118871 | - |
dc.contributor.localauthor | Lee, Hyunjoo | - |
dc.contributor.nonIdAuthor | Kim, Pyung Soon | - |
dc.contributor.nonIdAuthor | Kim, Chang Hwan | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | NOx storage | - |
dc.subject.keywordAuthor | NOx reduction | - |
dc.subject.keywordAuthor | Lean NOx trap | - |
dc.subject.keywordAuthor | Hydrothermal stability | - |
dc.subject.keywordAuthor | Ceria | - |
dc.subject.keywordPlus | DIESEL OXIDATION CATALYSTS | - |
dc.subject.keywordPlus | PENTACOORDINATED AL3+ IONS | - |
dc.subject.keywordPlus | STORAGE-REDUCTION | - |
dc.subject.keywordPlus | PLATINUM | - |
dc.subject.keywordPlus | CERIA | - |
dc.subject.keywordPlus | DEACTIVATION | - |
dc.subject.keywordPlus | PT/BAO/AL2O3 | - |
dc.subject.keywordPlus | DURABILITY | - |
dc.subject.keywordPlus | DISPERSION | - |
dc.subject.keywordPlus | SITES | - |
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