Research output: Contribution to journal › Article › peer-review
Magnetic studies of polystyrene/iron-filled multi-wall carbon nanotube composite films. / Makarova, T. L.; Zakharchuk, I.; Geydt, P. et al.
In: Journal of Magnetism and Magnetic Materials, Vol. 415, 8, 01.10.2016, p. 51-56.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Magnetic studies of polystyrene/iron-filled multi-wall carbon nanotube composite films
AU - Makarova, T. L.
AU - Zakharchuk, I.
AU - Geydt, P.
AU - Lahderanta, E.
AU - Komlev, A. A.
AU - Zyrianova, A. A.
AU - Kanygin, M. A.
AU - Sedelnikova, O. V.
AU - Suslyaev, V. I.
AU - Bulusheva, L. G.
AU - Okotrub, A. V.
N1 - Funding Information: This work was supported by European FP7 IRSES project 295180 MagNonMag and Horizon2020-RISE project 691010 Hunter. This work was partially supported by the Russian Scientific Foundation (Grant # 15-13-20021 ) We thank A.G. Kurenya for the MWCNT samples and E.Yu. Korovin for the microwave measurements. Publisher Copyright: © 2016 Elsevier B.V. All rights reserved.
PY - 2016/10/1
Y1 - 2016/10/1
N2 - Polystyrene/iron-filled multi-wall carbon nanotube composite films were prepared by solution processing, forge-rolling and stretching methods. Elongated iron carbide nanoparticles formed because of catalytic growth are situated inside the hollow cavity of the nanotubes. Magnetic susceptibility measurements as well as records of isothermal hysteresis loops performed in three perpendicular directions of magnetic field confirmed that the nanotubes have a preferential alignment in the matrix. Strong diamagnetic anisotropy in the composites emerges not only from the MWCNTs but also from the polystyrene matrix. The polymer sticks to the honeycomb lattice through the interaction of the π-orbitals of the phenyl ring and those of the carbon nanotube, contributing to anisotropic diamagnetic response. The contribution of iron nanoparticles to overall magnetic response strongly depends on nanotube concentration in the composite as well as on matrix-filler non-covalent stacking, which influences magnetic interparticle interactions.
AB - Polystyrene/iron-filled multi-wall carbon nanotube composite films were prepared by solution processing, forge-rolling and stretching methods. Elongated iron carbide nanoparticles formed because of catalytic growth are situated inside the hollow cavity of the nanotubes. Magnetic susceptibility measurements as well as records of isothermal hysteresis loops performed in three perpendicular directions of magnetic field confirmed that the nanotubes have a preferential alignment in the matrix. Strong diamagnetic anisotropy in the composites emerges not only from the MWCNTs but also from the polystyrene matrix. The polymer sticks to the honeycomb lattice through the interaction of the π-orbitals of the phenyl ring and those of the carbon nanotube, contributing to anisotropic diamagnetic response. The contribution of iron nanoparticles to overall magnetic response strongly depends on nanotube concentration in the composite as well as on matrix-filler non-covalent stacking, which influences magnetic interparticle interactions.
KW - Anisotropic susceptibility
KW - Composite
KW - Iron nanoparticles
KW - Magnetization
KW - Multi-wall carbon nanotubes
KW - Polystyrene
UR - http://www.scopus.com/inward/record.url?scp=84960145160&partnerID=8YFLogxK
UR - https://elibrary.ru/item.asp?id=27044358
U2 - 10.1016/j.jmmm.2016.01.088
DO - 10.1016/j.jmmm.2016.01.088
M3 - Article
AN - SCOPUS:84960145160
VL - 415
SP - 51
EP - 56
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
SN - 0304-8853
M1 - 8
ER -
ID: 35374845