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Title: X-ray photoelectron spectra of Ag-Au colloidal nanoparticles after interaction with linear carbon chains
Authors: Zhidkov, I. S.
Kurmaev, E. Z.
Condorelli, M.
Cholakh, S. O.
Boyarchenkov, A. S.
Fazio, E.
D’urso, L.
Issue Date: 2021
Publisher: MDPI AG
Citation: X-ray photoelectron spectra of Ag-Au colloidal nanoparticles after interaction with linear carbon chains / I. S. Zhidkov, E. Z. Kurmaev, M. Condorelli, et al. — DOI 10.3390/app11020685 // Applied Sciences (Switzerland). — 2021. — Vol. 11. — Iss. 2. — P. 1-9. — 685.
Abstract: The results of X-ray photoelectron spectra (XPS) characterization of the surface of Ag-Au colloidal nanoparticles (Ag-Au NPs), prepared by laser ablation in water before and after interaction with linear carbon chains (LCC), are presented. No additional features appear in high-energy resolved XPS core level spectra of Ag-Au NPs which indicates that surface is not oxidized. The measurements of XPS Ag 3d-spectrum of (Ag-Au)@LCC manifests the additional low-energy structure that is associated with the formation of Ag–C bonds. The charge transfer between Au atoms on the NPs surface and LCC was established. Additionally, some oxidation of the Ag atoms on the surface of (Ag-Au)@LCC is observed which arises during laser ablation in water. We assume that oxidative species will preferably interact with the areas outside the LCC instead of oxidizing the carbon chains which was confirmed by XPS C 1s spectra. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
Keywords: AG-AU ALLOY
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85100160589
PURE ID: 20893974
ISSN: 20763417
DOI: 10.3390/app11020685
metadata.dc.description.sponsorship: This study was supported by Russian Science Foundation (Project 19-72-00001). E.Z.K. and S.O.C. thank Ministry of Science and High Education of Russia (Theme “Electron” No. AAAA-A18– 118020190098-5 and Project FEUZ-2020–0060) for financial support.
RSCF project card: 19-72-00001
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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