Highly stable FeCo/carbon composites: Magnetic properties and microwave response

M. H. Xu; W. Zhong; Z. H. Wang; Chak Tong AU; Y. W. Du

doi:10.1016/j.physe.2013.03.032

Highly stable FeCo/carbon composites: Magnetic properties and microwave response

M. H. Xu^*, W. Zhong, Z. H. Wang, Chak Tong AU, Y. W. Du

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

27 Citations (Scopus)

Abstract

Highly steady composites of FeCo alloy and carbon nanotubes have been synthesized by in situ catalytic decomposition of benzene over FeCo alloy nanoparticles generated through procedures of sol-gel fabrication and hydrogen reduction. Magnetic measurement indicates that the coercivity (H_C) increases with the rise of Co concentration and the saturation magnetization (M_S) rises in the order of FeCo13@C<FeCo31@C<FeCo22@C. The complex permittivity and permeability of the composites indicates that the maximum reflection loss (RL) is -6.7 dB at 11.1 GHz at thickness of 1.5 mm for FeCo13@C, and as well as the electromagnetic wave absorption properties can be tuned by adjusting the composition of FeCo alloy and the absorption layer thickness.

Original language	English
Pages (from-to)	14-20
Number of pages	7
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	52
DOIs	https://doi.org/10.1016/j.physe.2013.03.032
Publication status	Published - 2013

Scopus Subject Areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics

User-Defined Keywords

Composite
Electromagnetic wave absorption
FeCo alloy
Magnetism

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10.1016/j.physe.2013.03.032

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title = "Highly stable FeCo/carbon composites: Magnetic properties and microwave response",

abstract = "Highly steady composites of FeCo alloy and carbon nanotubes have been synthesized by in situ catalytic decomposition of benzene over FeCo alloy nanoparticles generated through procedures of sol-gel fabrication and hydrogen reduction. Magnetic measurement indicates that the coercivity (HC) increases with the rise of Co concentration and the saturation magnetization (MS) rises in the order of FeCo13@C<FeCo31@C<FeCo22@C. The complex permittivity and permeability of the composites indicates that the maximum reflection loss (RL) is -6.7 dB at 11.1 GHz at thickness of 1.5 mm for FeCo13@C, and as well as the electromagnetic wave absorption properties can be tuned by adjusting the composition of FeCo alloy and the absorption layer thickness.",

keywords = "Composite, Electromagnetic wave absorption, FeCo alloy, Magnetism",

author = "Xu, {M. H.} and W. Zhong and Wang, {Z. H.} and AU, {Chak Tong} and Du, {Y. W.}",

note = "Funding Information: We thank the National Natural Science Foundation of China (Grant nos. 11174132 and 51072077 ), the National Key Project for Basic Research (Grant nos. 2011CB922102 and 2010CB923402 ), the MOST 973 Program of China (Grants nos. 2011CBA00102 and 2009CB929501 ), a Project funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) , and the National Laboratory of Solid State Microstructures, Nanjing University (Grant no. 2010ZZ18 ), and the Discipline Crossing Foundation of Nanjing University, People's Republic of China , for financial support. ",

year = "2013",

doi = "10.1016/j.physe.2013.03.032",

language = "English",

volume = "52",

pages = "14--20",

journal = "Physica E: Low-Dimensional Systems and Nanostructures",

issn = "1386-9477",

publisher = "Elsevier",

}

TY - JOUR

T1 - Highly stable FeCo/carbon composites

T2 - Magnetic properties and microwave response

AU - Xu, M. H.

AU - Zhong, W.

AU - Wang, Z. H.

AU - AU, Chak Tong

AU - Du, Y. W.

N1 - Funding Information: We thank the National Natural Science Foundation of China (Grant nos. 11174132 and 51072077 ), the National Key Project for Basic Research (Grant nos. 2011CB922102 and 2010CB923402 ), the MOST 973 Program of China (Grants nos. 2011CBA00102 and 2009CB929501 ), a Project funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) , and the National Laboratory of Solid State Microstructures, Nanjing University (Grant no. 2010ZZ18 ), and the Discipline Crossing Foundation of Nanjing University, People's Republic of China , for financial support.

PY - 2013

Y1 - 2013

N2 - Highly steady composites of FeCo alloy and carbon nanotubes have been synthesized by in situ catalytic decomposition of benzene over FeCo alloy nanoparticles generated through procedures of sol-gel fabrication and hydrogen reduction. Magnetic measurement indicates that the coercivity (HC) increases with the rise of Co concentration and the saturation magnetization (MS) rises in the order of FeCo13@C<FeCo31@C<FeCo22@C. The complex permittivity and permeability of the composites indicates that the maximum reflection loss (RL) is -6.7 dB at 11.1 GHz at thickness of 1.5 mm for FeCo13@C, and as well as the electromagnetic wave absorption properties can be tuned by adjusting the composition of FeCo alloy and the absorption layer thickness.

AB - Highly steady composites of FeCo alloy and carbon nanotubes have been synthesized by in situ catalytic decomposition of benzene over FeCo alloy nanoparticles generated through procedures of sol-gel fabrication and hydrogen reduction. Magnetic measurement indicates that the coercivity (HC) increases with the rise of Co concentration and the saturation magnetization (MS) rises in the order of FeCo13@C<FeCo31@C<FeCo22@C. The complex permittivity and permeability of the composites indicates that the maximum reflection loss (RL) is -6.7 dB at 11.1 GHz at thickness of 1.5 mm for FeCo13@C, and as well as the electromagnetic wave absorption properties can be tuned by adjusting the composition of FeCo alloy and the absorption layer thickness.

KW - Composite

KW - Electromagnetic wave absorption

KW - FeCo alloy

KW - Magnetism

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U2 - 10.1016/j.physe.2013.03.032

DO - 10.1016/j.physe.2013.03.032

M3 - Journal article

AN - SCOPUS:84876834623

SN - 1386-9477

VL - 52

SP - 14

EP - 20

JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

ER -

Highly stable FeCo/carbon composites: Magnetic properties and microwave response

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