There are no files associated with this item.
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 572 | - |
dc.citation.number | 3 | - |
dc.citation.startPage | 566 | - |
dc.citation.title | JOURNAL OF PHYSICAL CHEMISTRY LETTERS | - |
dc.citation.volume | 5 | - |
dc.contributor.author | Kwak, Jahun | - |
dc.contributor.author | Dagle, Robert | - |
dc.contributor.author | Tustin, Gerald C. | - |
dc.contributor.author | Zoeller, Joseph R. | - |
dc.contributor.author | Allard, Lawrence F. | - |
dc.contributor.author | Wang, Yong | - |
dc.date.accessioned | 2023-12-22T03:07:09Z | - |
dc.date.available | 2023-12-22T03:07:09Z | - |
dc.date.created | 2014-02-24 | - |
dc.date.issued | 2014-02 | - |
dc.description.abstract | We report that when Ir and La halides are deposited on carbon, exposure to CO spontaneously generates a discrete molecular heterobimetallic structure, containing an Ir-La covalent bond that acts as a highly active, selective, and stable heterogeneous catalyst for the carbonylation of methanol to produce acetic acid. This catalyst exhibits a very high productivity of ∼1.5 mol acetyl/mol Ir·s with >99% selectivity to acetyl (acetic acid and methyl acetate) without detectable loss in activity or selectivity for more than 1 month of continuous operation. The enhanced activity can be mechanistically rationalized by the presence of La within the ligand sphere of the discrete molecular Ir-La heterobimetallic structure, which acts as a Lewis acid to accelerate the normally rate-limiting CO insertion in Ir-catalyzed carbonylation. Similar approaches may provide opportunities for attaining molecular (single site) behavior similar to homogeneous catalysis on heterogeneous surfaces for other industrial applications. | - |
dc.identifier.bibliographicCitation | JOURNAL OF PHYSICAL CHEMISTRY LETTERS, v.5, no.3, pp.566 - 572 | - |
dc.identifier.doi | 10.1021/jz402728e | - |
dc.identifier.issn | 1948-7185 | - |
dc.identifier.scopusid | 2-s2.0-84893865698 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/4088 | - |
dc.identifier.url | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84893865698 | - |
dc.identifier.wosid | 000331153600030 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Molecular active sites in heterogeneous Ir-La/C-catalyzed carbonylation of methanol to acetates | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Atomic, Molecular & Chemical | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science; Physics | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Tel : 052-217-1404 / Email : scholarworks@unist.ac.kr
Copyright (c) 2023 by UNIST LIBRARY. All rights reserved.
ScholarWorks@UNIST was established as an OAK Project for the National Library of Korea.