Please use this identifier to cite or link to this item: http://elar.urfu.ru/handle/10995/135831
Title: Interactions in Al2O3 - graphene oxide composite: XPS study
Authors: Kukharenko, A. I.
Cholakh, S. O.
Kurmaev, E. Z.
Zhidkov, I. S.
Issue Date: 2024
Publisher: Уральский федеральный университет
Citation: Interactions in Al2O3 - graphene oxide composite: XPS study / A. I. Kukharenko, S. O. Cholakh, E. Z. Kurmaev, I. S. Zhidkov // Аналитика и контроль. — 2024. — Том 28. — № 1. — С. 54-56.
Abstract: The structure of an aluminum oxide/graphene oxide (GO) composite was studied using X-ray photoelectron spectroscopy (XPS). High-energy resolved XPS measurements of Al 2p-core level spectra revealed the formation of Al–O–C bonds, which indicated the occurrence of interfacial reactions between Al2O3 and GO in the process of composite synthesis. An increase in intensity in the near-edge region of XPS valence band (VB) spectrum was observed with increasing GO concentration, indicating possible contribution of the electronic states of carbon. Filling the electronic states on the edge of VB allows to associate GO doping with the loss of dielectric properties of the original Al2O3 compound. Addition of graphene oxide to Al2O3 ceramics changed conductive properties of the composite due to formation of new chemical bonds.
Keywords: X-RAY PHOTOELECTRON SPECTROSCOPY
GRAPHENE OXIDE
ALUMINA OXIDE
COMPOSITE
URI: http://elar.urfu.ru/handle/10995/135831
RSCI ID: 67354108
ISSN: 2073-1450
2073-1442
DOI: 10.15826/analitika.2024.28.1.006
metadata.dc.description.sponsorship: This work was supported by Ministry of Science and High Education of the Russian Federation: Theme “Electron” No АААА-А18-118020190098-5 and Project FEUZ-2023-0013. We thank José Luis Menéndez and Lucía Fernández-García (Consejo Superior de Investigaciones Científicas (CSIC) – Universidad de Oviedo) for sample preparation.
Origin: Аналитика и контроль. 2024. Том 28. № 1
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