Unraveling molecular fingerprints of catalytic sulfur poisoning at the nanometer scale with near-field infrared spectroscopy

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buir.contributor.authorKoçak, Yusuf
buir.contributor.authorErcan, Kerem Emre
buir.contributor.authorSika-Nartey, Abel Tetteh
buir.contributor.authorJalal, Ahsan
buir.contributor.authorTürk, Ahmet Arda
buir.contributor.orcidKoçak, Yusuf|0000-0003-4511-1321
buir.contributor.orcidErcan, Kerem Emre|0000-0003-4650-7977
buir.contributor.orcidSika-Nartey, Abel Tetteh|0000-0002-5327-844X
buir.contributor.orcidTürk, Ahmet Arda|0000-0002-8731-4701
buir.contributor.orcidÖzensoy, Emrah|0000-0003-4352-3824
dc.citation.epage8860en_US
dc.citation.spage8848en_US
dc.citation.volumeNumber144en_US
dc.contributor.authorSay, Zafer
dc.contributor.authorKaya, Melike
dc.contributor.authorKaderoǧlu, Çağıl
dc.contributor.authorKoçak, Yusuf
dc.contributor.authorErcan, Kerem Emre
dc.contributor.authorSika-Nartey, Abel Tetteh
dc.contributor.authorJalal, Ahsan
dc.contributor.authorTürk, Ahmet Arda
dc.contributor.authorLanghammer, Christoph
dc.contributor.authorJahangirzadeh Varjovi, Mirali
dc.contributor.authorDurgun, Engin
dc.contributor.authorÖzensoy, Emrah
dc.date.accessioned2023-02-27T12:44:37Z
dc.date.available2023-02-27T12:44:37Z
dc.date.issued2022-04-29
dc.description.abstractFundamental understanding of catalytic deactivation phenomena such as sulfur poisoning occurring on metal/metal-oxide interfaces is essential for the development of high-performance heterogeneous catalysts with extended lifetimes. Unambiguous identification of catalytic poisoning species requires experimental methods simultaneously delivering accurate information regarding adsorption sites and adsorption geometries of adsorbates with nanometer-scale spatial resolution, as well as their detailed chemical structure and surface functional groups. However, to date, it has not been possible to study catalytic sulfur poisoning of metal/metal-oxide interfaces at the nanometer scale without sacrificing chemical definition. Here, we demonstrate that near-field nano-infrared spectroscopy can effectively identify the chemical nature, adsorption sites, and adsorption geometries of sulfur-based catalytic poisons on a Pd(nanodisk)/Al2O3 (thin-film) planar model catalyst surface at the nanometer scale. The current results reveal striking variations in the nature of sulfate species from one nanoparticle to another, vast alterations of sulfur poisoning on a single Pd nanoparticle as well as at the assortment of sulfate species at the active metal-metal-oxide support interfacial sites. These findings provide critical molecular-level insights crucial for the development of long-lifetime precious metal catalysts resistant toward deactivation by sulfur. ©en_US
dc.description.provenanceSubmitted by Zeliha Bucak Çelik (zeliha.celik@bilkent.edu.tr) on 2023-02-27T12:44:37Z No. of bitstreams: 1 Unraveling_Molecular_Fingerprints_of_Catalytic_Sulfur_Poisoning_at_the_Nanometer_Scale_with_Near-Field_Infrared_Spectroscopy.pdf: 6470226 bytes, checksum: 90fa9fc3249cc1677fc2a6860236ddb7 (MD5)en
dc.description.provenanceMade available in DSpace on 2023-02-27T12:44:37Z (GMT). No. of bitstreams: 1 Unraveling_Molecular_Fingerprints_of_Catalytic_Sulfur_Poisoning_at_the_Nanometer_Scale_with_Near-Field_Infrared_Spectroscopy.pdf: 6470226 bytes, checksum: 90fa9fc3249cc1677fc2a6860236ddb7 (MD5) Previous issue date: 2022-04-29en
dc.embargo.release2023-04-29
dc.identifier.doi10.1021/jacs.2c03088en_US
dc.identifier.issn0002-7863
dc.identifier.urihttp://hdl.handle.net/11693/111822
dc.language.isoEnglishen_US
dc.publisherAmerican Chemical Societyen_US
dc.relation.isversionofhttps://dx.doi.org/10.1021/jacs.2c03088en_US
dc.source.titleJournal of the American Chemical Societyen_US
dc.titleUnraveling molecular fingerprints of catalytic sulfur poisoning at the nanometer scale with near-field infrared spectroscopyen_US
dc.typeArticleen_US

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