Metal-support interaction in pt nanodisk-carbon nitride catalyst: insight from theory and experiment

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dc.authorscopusidEsmail Doustkhah / 55785922800
dc.authorwosidEsmail Doustkhah / I-7553-2014
dc.contributor.authorDoustkhah, Esmail
dc.contributor.authorKotb, Ahmed
dc.contributor.authorBalkan, Timuçin
dc.contributor.authorAssadi, Mohammad Hussein Naseef
dc.date.accessioned2025-04-18T10:28:33Z
dc.date.available2025-04-18T10:28:33Z
dc.date.issued2024
dc.departmentİstinye Üniversitesi, Lisansüstü Eğitim Enstitüsü, Fen Bilimleri, Kimya Programı
dc.description.abstractMetal-support interaction plays a critical role in determining the eventual catalytic activity of metals loaded on supporting substrates. This interaction can sometimes cause a significant drop in the metallic property of the loaded metal and, hence, a drop in catalytic activity in the reactions, especially in those for which low charge carrier transfer resistance is a necessary parameter. Therefore, there should be a case-by-case experimental or theoretical (or both) in-depth investigation to understand the role of support on each metal. Here, onto a layered porous carbon nitride (g-CN), we grew single crystalline Pt nanodisks (Pt@g-CN) with a lateral average size of 21 nm, followed by various characterisations such as electron microscopy techniques, and the measurement of electrocatalytic activity in the O-2 reduction reaction (ORR). We found that intercalating Pt nanodisks in the g-CN interlayers causes an increase in electrocatalytic activity. We investigated the bonding mechanism between carbon support and platinum using density functional theory and applied the d-band theory to understand the catalytic performance. Analysis of Pt's density of states and electronic population across layers sheds light on the catalytic behaviour of Pt nanoparticles, particularly in relation to their thickness and proximity to the g-CN support interface. Our simulation reveals an optimum thickness of similar to 11 angstrom, under which the catalytic performance deteriorates.
dc.description.sponsorshipJapan Science & Technology Agency (JST)
dc.identifier.citationDoustkhah, E., Kotb, A., Balkan, T., & Assadi, M. H. N. (2024). Metal–Support Interaction in Pt Nanodisk–Carbon Nitride Catalyst: Insight from Theory and Experiment. Nanomaterials, 14(11), 921.
dc.identifier.doi10.3390/nano14110921
dc.identifier.endpage10
dc.identifier.issn2079-4991
dc.identifier.issue11
dc.identifier.pmid38869546
dc.identifier.scopus2-s2.0-85195992766
dc.identifier.scopusqualityQ1
dc.identifier.startpage1
dc.identifier.urihttp://dx.doi.org/10.3390/nano14110921
dc.identifier.urihttps://hdl.handle.net/20.500.12713/7082
dc.identifier.volume14
dc.identifier.wosWOS:001247991100001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.institutionauthorDoustkhah, Esmail
dc.institutionauthorAssadi, Mohammad Hussein Naseef
dc.institutionauthoridEsmail Doustkhah / 0000-0003-1459-1756
dc.language.isoen
dc.publisherMDPI
dc.relation.ispartofNanomaterials
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectMetal-Support Interaction
dc.subjectHard Template
dc.subjectCrystalline Pt
dc.subjectOxygen Reduction Reaction (ORR)
dc.subjectPorous Layered Nitride
dc.subjectDensity Functional Theory
dc.subjectD-Band Theory
dc.titleMetal-support interaction in pt nanodisk-carbon nitride catalyst: insight from theory and experiment
dc.typeArticle

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