DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, Younghwan | ko |
dc.contributor.author | Lee, Songhyun | ko |
dc.contributor.author | Hyun, Kyunglim | ko |
dc.contributor.author | Lee, Jueun | ko |
dc.contributor.author | Park, Jeong Young | ko |
dc.contributor.author | Ryoo, Ryong | ko |
dc.contributor.author | Choi, Minkee | ko |
dc.date.accessioned | 2022-02-22T06:43:36Z | - |
dc.date.available | 2022-02-22T06:43:36Z | - |
dc.date.created | 2022-02-22 | - |
dc.date.created | 2022-02-22 | - |
dc.date.created | 2022-02-22 | - |
dc.date.issued | 2021-12 | - |
dc.identifier.citation | JOURNAL OF CATALYSIS, v.404, pp.716 - 725 | - |
dc.identifier.issn | 0021-9517 | - |
dc.identifier.uri | http://hdl.handle.net/10203/292351 | - |
dc.description.abstract | The partial hydrogenation of acetylene impurities in ethylene is industrially important because acetylene acts as a catalyst poison in downstream ethylene polymerization processes. In this reaction, simultaneously achieving high acetylene conversion and partial hydrogenation selectivity is challenging, and most known catalyst systems exhibit an inverse activity-selectivity relationship. Here, an amorphous polyphenylene sulfide (Am-PPS) was synthesized as a promoter for 0.1 wt% Pd/alpha-Al2O3. The catalyst modification using a trace amount of Am-PPS (0.15 wt%) enabled a remarkable enhancement of ethylene selectivity without an appreciable loss in acetylene hydrogenation activity. This could be attributed to the dynamic change of the Am-PPS-Pd interface, which selectively allows the cooperative adsorption of acetylene and H-2, but not ethylene. Besides, the modified catalyst exhibited excellent long-term stability because of the high thermochemical stability of the polymer. These results demonstrate the unique possibility of using dynamic metal-polymer interaction to design partial hydrogenation catalysts that simultaneously exhibit high activity, selectivity, and stability. (C) 2021 Elsevier Inc. All rights reserved. | - |
dc.language | English | - |
dc.publisher | ACADEMIC PRESS INC ELSEVIER SCIENCE | - |
dc.title | Breaking the inverse relationship between catalytic activity and selectivity in acetylene partial hydrogenation using dynamic metal-polymer interaction | - |
dc.type | Article | - |
dc.identifier.wosid | 000753148800011 | - |
dc.identifier.scopusid | 2-s2.0-85116759591 | - |
dc.type.rims | ART | - |
dc.citation.volume | 404 | - |
dc.citation.beginningpage | 716 | - |
dc.citation.endingpage | 725 | - |
dc.citation.publicationname | JOURNAL OF CATALYSIS | - |
dc.identifier.doi | 10.1016/j.jcat.2021.09.017 | - |
dc.contributor.localauthor | Park, Jeong Young | - |
dc.contributor.localauthor | Ryoo, Ryong | - |
dc.contributor.localauthor | Choi, Minkee | - |
dc.contributor.nonIdAuthor | Lee, Jueun | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Partial hydrogenation | - |
dc.subject.keywordAuthor | Acetylene | - |
dc.subject.keywordAuthor | Dynamic metal-polymer interaction | - |
dc.subject.keywordAuthor | Palladium | - |
dc.subject.keywordAuthor | Polyphenylene sulfide | - |
dc.subject.keywordPlus | PALLADIUM CATALYSTS | - |
dc.subject.keywordPlus | PD NANOPARTICLES | - |
dc.subject.keywordPlus | AG | - |
dc.subject.keywordPlus | ETHYLENE | - |
dc.subject.keywordPlus | SULFIDE | - |
dc.subject.keywordPlus | SEMIHYDROGENATION | - |
dc.subject.keywordPlus | DEACTIVATION | - |
dc.subject.keywordPlus | CONSEQUENCES | - |
dc.subject.keywordPlus | EFFICIENT | - |
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