18.1% single palladium atom catalysts on mesoporous covalent organic framework for gas phase hydrogenation of ethylene

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dc.contributor.authorKuo, Chun-Teen
dc.contributor.authorLu, Yubingen
dc.contributor.authorArab, Pezhmanen
dc.contributor.authorWeeraratne, K. Shamaraen
dc.contributor.authorEl-Kaderi, Hanien
dc.contributor.authorKarim, Ayman M.en
dc.date.accessioned2022-04-07T18:36:17Zen
dc.date.available2022-04-07T18:36:17Zen
dc.date.issued2021-07-21en
dc.description.abstractNoble metal single-atom catalysts maximize metal utilization and offer opportunities to design heterogeneous catalysts at the molecular scale. Mesoporous covalent organic frameworks provide an ideal support to stabilize metal single atoms with specific ligand configuration similar to a homogeneous catalyst In this work, a high loading of single Pd atoms, 18.1 wt %, on mesoporous imine-linked covalent organic framework was synthesized, characterized, and evaluated for ethylene hydrogenation. X-ray photoelectron spectroscopy, X-ray absorption spectroscopy, and diffuse-reflectance infrared Fourier transform spectroscopy of adsorbed CO demonstrate that the Pd is atomically dispersed with a highly homogeneous local coordination. The Pd single atoms are active for hydrogenation of ethylene to ethane at room temperature. The study demonstrates that mesoporous COFs provide a large number of identical metal binding sites that are good candidates for immobilizing metal single atoms and their use in gas-phase catalytic applications.en
dc.description.notesThis research was sponsored primarily by the American Chemical Society Petroleum Research Fund (PRF) and was accomplished under award number 55575-ND5. Use of the SSRL (beamline 9-3, user proposal 4938) was supported by the U.S. Department of Energy, Office of Basic Energy Sciences, under contract DE-AC0276SF00515.en
dc.description.sponsorshipAmerican Chemical Society Petroleum Research Fund (PRF)American Chemical Society [55575-ND5]; U.S. Department of Energy, Office of Basic Energy SciencesUnited States Department of Energy (DOE) [DE-AC0276SF00515]en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1016/j.xcrp.2021.100495en
dc.identifier.issn2666-3864en
dc.identifier.issue7en
dc.identifier.other100495en
dc.identifier.urihttp://hdl.handle.net/10919/109593en
dc.identifier.volume2en
dc.language.isoenen
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.title18.1% single palladium atom catalysts on mesoporous covalent organic framework for gas phase hydrogenation of ethyleneen
dc.title.serialCell Reports Physical Scienceen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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