This work reports on room-temperature ferromagnetism of pyrolytic oxidized-graphene nanoplatelets obtained from bamboo pyroligneous acid by varying the density of extended defects. Topographic defects, created during the fabrication process, arise from a natural formation of clusters; such clusters drastically distort the graphitic basal plane, giving rise to abrupt surface curvatures. Topographic defects were found to be sources of the magnetic signal, as evidenced by bulk magnetization and magnetic force microscopy measurements. Increased defect density, tuned by carbonization temperature, results in enhanced magnetization.
Room-temperature ferromagnetism in oxidized-graphenic nanoplatelets induced by topographic defects
Di Giorgio C;Bobba F;Cucolo AM
2021
Abstract
This work reports on room-temperature ferromagnetism of pyrolytic oxidized-graphene nanoplatelets obtained from bamboo pyroligneous acid by varying the density of extended defects. Topographic defects, created during the fabrication process, arise from a natural formation of clusters; such clusters drastically distort the graphitic basal plane, giving rise to abrupt surface curvatures. Topographic defects were found to be sources of the magnetic signal, as evidenced by bulk magnetization and magnetic force microscopy measurements. Increased defect density, tuned by carbonization temperature, results in enhanced magnetization.| File | Dimensione | Formato | |
|---|---|---|---|
|
1-s2.0-S0304885320326317-main_compressed.pdf
Open Access dal 01/01/2023
Descrizione: This document is the Accepted Manuscript version of a Published Work that can be found in final form at https://doi.org/10.1016/j.jmmm.2020.167664
Tipologia:
Documento in Post-print
Licenza:
Creative commons
Dimensione
1.27 MB
Formato
Adobe PDF
|
1.27 MB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
