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Journal of Materials Science
Erschienen in: Journal of Materials Science 13/2017

28.03.2017 | Original Paper

Oxygen vacancy-induced room temperature ferromagnetism in graphene–SnO2 nanocomposites

verfasst von: Kamarajan Thiyagarajan, Kandasamy Sivakumar

Erschienen in: Journal of Materials Science | Ausgabe 13/2017

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Abstract

Reduced graphene oxide (rGO)–SnO2 nanocomposites have been successfully prepared by one-spot facile hydrothermal method. The nanostructures of the samples were analytically inspected and found that SnO2 are evenly anchored on the surface of rGO sheets. The presence of surface defects was identified by spectroscopic techniques. The EPR results confirmed the presence of singly charged oxygen vacancies on the surface of rGO–SnO2 nanocomposites and found to be accountable for its room temperature ferromagnetism. The ferromagnetic behavior (coercivity, saturation magnetization and remanent magnetization) of rGO–SnO2 nanocomposites is suppressed as compared to pure SnO2. The incorporation of rGO sheets notably reduces oxygen vacancies in SnO2 and alters the room temperature ferromagnetism in rGO–SnO2 nanocomposites.
Vorheriger Artikel A detailed investigation on the performance of dye-sensitized solar cells based on reduced graphene oxide-doped TiO2 photoanode
Nächster Artikel Three-dimensional tin dioxide–graphene composite nanofiber membrane as binder-free anode for high-performance lithium-ion batteries

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Metadaten
Titel
Oxygen vacancy-induced room temperature ferromagnetism in graphene–SnO2 nanocomposites
verfasst von
Kamarajan Thiyagarajan
Kandasamy Sivakumar
Publikationsdatum
28.03.2017
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 13/2017
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-017-1016-7

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