DC Field | Value | Language |
---|---|---|
dc.contributor.author | Choi, Yunji | ko |
dc.contributor.author | Kim, Gunjoo | ko |
dc.contributor.author | Kim, Jinwoong | ko |
dc.contributor.author | Lee, Seungwoo | ko |
dc.contributor.author | Kim, Jeong-Chul | ko |
dc.contributor.author | Ryoo, Ryong | ko |
dc.contributor.author | Lee, Hyunjoo | ko |
dc.date.accessioned | 2023-06-26T03:00:12Z | - |
dc.date.available | 2023-06-26T03:00:12Z | - |
dc.date.created | 2023-06-26 | - |
dc.date.created | 2023-06-26 | - |
dc.date.issued | 2023-05 | - |
dc.identifier.citation | APPLIED CATALYSIS B-ENVIRONMENTAL, v.325 | - |
dc.identifier.issn | 0926-3373 | - |
dc.identifier.uri | http://hdl.handle.net/10203/309414 | - |
dc.description.abstract | Ensuring durable catalyst structure is crucial for heterogeneous surface reactions. Particularly, exhaust gas treatment catalyst needs exceptional durability at very high temperature (>= 800 degrees C) and low-temperature ac-tivity. Here, a hierarchical catalyst structure consisting of alumina, ceria, and Pt was synthesized to achieve high activity and durability. The alumina surface was modified to have surface hydroxyl groups by hydrothermal pre-treatment at various temperatures, then this alumina was used to anchor catalytically active species to form a highly durable surface structure. Whereas Pt and ceria on bare alumina suffered from significant sintering after aging at 800 degrees C, the same species formed on the pre-treated alumina hardly presented change in surface structure after aging. This durable Pt/CeO2/Al2O3 catalyst showed no degradation for the simultaneous oxidation of CO, C3H6, and C3H8 with water vapor for repeated reactions or long-term reactions. This work can provide a useful guideline in designing a durable heterogeneous catalyst. | - |
dc.language | English | - |
dc.publisher | ELSEVIER | - |
dc.title | Anchoring catalytically active species on alumina via surface hydroxyl group for durable surface reaction | - |
dc.type | Article | - |
dc.identifier.wosid | 001005362300001 | - |
dc.identifier.scopusid | 2-s2.0-85145092805 | - |
dc.type.rims | ART | - |
dc.citation.volume | 325 | - |
dc.citation.publicationname | APPLIED CATALYSIS B-ENVIRONMENTAL | - |
dc.identifier.doi | 10.1016/j.apcatb.2022.122325 | - |
dc.contributor.localauthor | Lee, Hyunjoo | - |
dc.contributor.nonIdAuthor | Kim, Jinwoong | - |
dc.contributor.nonIdAuthor | Lee, Seungwoo | - |
dc.contributor.nonIdAuthor | Kim, Jeong-Chul | - |
dc.contributor.nonIdAuthor | Ryoo, Ryong | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Surface hydroxyl groups | - |
dc.subject.keywordAuthor | Alumina | - |
dc.subject.keywordAuthor | Ceria | - |
dc.subject.keywordAuthor | Platinum | - |
dc.subject.keywordAuthor | Durability | - |
dc.subject.keywordPlus | GAMMA-ALUMINA | - |
dc.subject.keywordPlus | AL3+ SITES | - |
dc.subject.keywordPlus | CATALYSTS | - |
dc.subject.keywordPlus | GAMMA-AL2O3 | - |
dc.subject.keywordPlus | HYDROGENATION | - |
dc.subject.keywordPlus | H-1-NMR | - |
dc.subject.keywordPlus | OXYGEN | - |
dc.subject.keywordPlus | CERIA | - |
dc.subject.keywordPlus | IONS | - |
dc.subject.keywordPlus | CO | - |
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