Single-crystalline FeCo nanoparticle-filled carbon nanotubes: synthesis, structural characterization and magnetic properties
In the present work, we demonstrate different synthesis procedures for filling carbon nanotubes (CNTs) with equimolar binary nanoparticles of the type Fe–Co. The CNTs act as templates for the encapsulation of magnetic nanoparticles and provide a protective shield against oxidation as well as prevent...
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doaj-15b59415aba1493596c19e50d946333a2020-11-25T01:26:13ZengBeilstein-InstitutBeilstein Journal of Nanotechnology2190-42862018-03-01911024103410.3762/bjnano.9.952190-4286-9-95Single-crystalline FeCo nanoparticle-filled carbon nanotubes: synthesis, structural characterization and magnetic propertiesRasha Ghunaim0Maik Scholz1Christine Damm2Bernd Rellinghaus3Rüdiger Klingeler4Bernd Büchner5Michael Mertig6Silke Hampel7Leibniz Institute for Solid State and Material Research Dresden, Helmholtzstrasse. 20, 01069 Dresden, GermanyLeibniz Institute for Solid State and Material Research Dresden, Helmholtzstrasse. 20, 01069 Dresden, GermanyLeibniz Institute for Solid State and Material Research Dresden, Helmholtzstrasse. 20, 01069 Dresden, GermanyLeibniz Institute for Solid State and Material Research Dresden, Helmholtzstrasse. 20, 01069 Dresden, GermanyKirchhoff Institute for Physics, Heidelberg University, Im Neuenheimer Feld 227, D-69120 Heidelberg, GermanyLeibniz Institute for Solid State and Material Research Dresden, Helmholtzstrasse. 20, 01069 Dresden, GermanyInstitute for Physical Chemistry, Technische Universitaet Dresden, 01062 Dresden, GermanyLeibniz Institute for Solid State and Material Research Dresden, Helmholtzstrasse. 20, 01069 Dresden, GermanyIn the present work, we demonstrate different synthesis procedures for filling carbon nanotubes (CNTs) with equimolar binary nanoparticles of the type Fe–Co. The CNTs act as templates for the encapsulation of magnetic nanoparticles and provide a protective shield against oxidation as well as prevent nanoparticle agglomeration. By variation of the reaction parameters, we were able to tailor the sample purity, degree of filling, the composition and size of the filling particles, and therefore, the magnetic properties. The samples were analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), superconducting quantum interference device (SQUID) and thermogravimetric analysis (TGA). The Fe–Co-filled CNTs show significant enhancement in the coercive field as compared to the corresponding bulk material, which make them excellent candidates for several applications such as magnetic storage devices.https://doi.org/10.3762/bjnano.9.95carbon nanotubescrystal structureencapsulationFe–Co binary nanoparticlesmagnetic nanoparticles |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Rasha Ghunaim Maik Scholz Christine Damm Bernd Rellinghaus Rüdiger Klingeler Bernd Büchner Michael Mertig Silke Hampel |
spellingShingle |
Rasha Ghunaim Maik Scholz Christine Damm Bernd Rellinghaus Rüdiger Klingeler Bernd Büchner Michael Mertig Silke Hampel Single-crystalline FeCo nanoparticle-filled carbon nanotubes: synthesis, structural characterization and magnetic properties Beilstein Journal of Nanotechnology carbon nanotubes crystal structure encapsulation Fe–Co binary nanoparticles magnetic nanoparticles |
author_facet |
Rasha Ghunaim Maik Scholz Christine Damm Bernd Rellinghaus Rüdiger Klingeler Bernd Büchner Michael Mertig Silke Hampel |
author_sort |
Rasha Ghunaim |
title |
Single-crystalline FeCo nanoparticle-filled carbon nanotubes: synthesis, structural characterization and magnetic properties |
title_short |
Single-crystalline FeCo nanoparticle-filled carbon nanotubes: synthesis, structural characterization and magnetic properties |
title_full |
Single-crystalline FeCo nanoparticle-filled carbon nanotubes: synthesis, structural characterization and magnetic properties |
title_fullStr |
Single-crystalline FeCo nanoparticle-filled carbon nanotubes: synthesis, structural characterization and magnetic properties |
title_full_unstemmed |
Single-crystalline FeCo nanoparticle-filled carbon nanotubes: synthesis, structural characterization and magnetic properties |
title_sort |
single-crystalline feco nanoparticle-filled carbon nanotubes: synthesis, structural characterization and magnetic properties |
publisher |
Beilstein-Institut |
series |
Beilstein Journal of Nanotechnology |
issn |
2190-4286 |
publishDate |
2018-03-01 |
description |
In the present work, we demonstrate different synthesis procedures for filling carbon nanotubes (CNTs) with equimolar binary nanoparticles of the type Fe–Co. The CNTs act as templates for the encapsulation of magnetic nanoparticles and provide a protective shield against oxidation as well as prevent nanoparticle agglomeration. By variation of the reaction parameters, we were able to tailor the sample purity, degree of filling, the composition and size of the filling particles, and therefore, the magnetic properties. The samples were analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), superconducting quantum interference device (SQUID) and thermogravimetric analysis (TGA). The Fe–Co-filled CNTs show significant enhancement in the coercive field as compared to the corresponding bulk material, which make them excellent candidates for several applications such as magnetic storage devices. |
topic |
carbon nanotubes crystal structure encapsulation Fe–Co binary nanoparticles magnetic nanoparticles |
url |
https://doi.org/10.3762/bjnano.9.95 |
work_keys_str_mv |
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