TY - JOUR
T1 - Formation of magnetic nanoscrolls and nanoribbons in iron oxide-decorated graphene oxide
AU - Caballero Briones, F.
AU - Guerrero-Contreras, J.
AU - Benito-Santiago, S. E.
AU - Sanchez Llamazares, J. L.
AU - Espinosa-Faller, F. J.
N1 - Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2022/2/15
Y1 - 2022/2/15
N2 - In the present contribution, the formation of nanoscrolls after a hydrazine treatment in iron oxide-decorated graphene oxide was observed. After a HCl treatment, the nanoscrolls lead to the formation of nanoribbons. The proposed mechanism of nanoscroll formation includes the decoration onto the epoxy/hydroxyl moieties and the reduction of carboxyl and carbonyl groups at the end ot the graphene sheet that cause the sheet rolling. The nanoribbons form upon iron oxide dissolution and beaking of the iron-carbon bonds causing the sheet ripening. Both materials are superparamagnetic, with maximum saturation magnetization of 30 and 20 A.m2.kg−1 respectively, measured in the 10–400 K range by vibrating sample magnetometry. The formation of these structures seem to be observed, yet not described in other reports, suggesting the nanoscroll formation in FeOx-GO could be a more general phenomenon.
AB - In the present contribution, the formation of nanoscrolls after a hydrazine treatment in iron oxide-decorated graphene oxide was observed. After a HCl treatment, the nanoscrolls lead to the formation of nanoribbons. The proposed mechanism of nanoscroll formation includes the decoration onto the epoxy/hydroxyl moieties and the reduction of carboxyl and carbonyl groups at the end ot the graphene sheet that cause the sheet rolling. The nanoribbons form upon iron oxide dissolution and beaking of the iron-carbon bonds causing the sheet ripening. Both materials are superparamagnetic, with maximum saturation magnetization of 30 and 20 A.m2.kg−1 respectively, measured in the 10–400 K range by vibrating sample magnetometry. The formation of these structures seem to be observed, yet not described in other reports, suggesting the nanoscroll formation in FeOx-GO could be a more general phenomenon.
KW - Magnetic graphene oxide
KW - Nanoscrolls
KW - Sheet folding
KW - Sheet ripening
UR - http://www.scopus.com/inward/record.url?scp=85120976668&partnerID=8YFLogxK
U2 - 10.1016/j.matlet.2021.131321
DO - 10.1016/j.matlet.2021.131321
M3 - Artículo
AN - SCOPUS:85120976668
SN - 0167-577X
VL - 309
JO - Materials Letters
JF - Materials Letters
M1 - 131321
ER -