Controllable synthesis, characterization, and magnetic properties of magnetic nanoparticles encapsulated in carbon nanocages and carbon nanotubes

Xiaosi Qi; Jianle Xu; Wei Zhong; Chaktong Au; Youwei Du

doi:10.1016/j.diamond.2014.02.013

Controllable synthesis, characterization, and magnetic properties of magnetic nanoparticles encapsulated in carbon nanocages and carbon nanotubes

Xiaosi Qi
, Jianle Xu
, Wei Zhong^*
, Chaktong Au
, Youwei Du

^*Corresponding author for this work

Department of Chemistry

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

5 Citations (Scopus)

Abstract

By controlling the pyrolysis temperature, core/shell materials with Fe ₃O₄ encapsulated in carbon nanocages (Fe₃O ₄@CNCs) and Fe encapsulated in carbon nanotubes (Fe@CNTs) were synthesized selectively from acetylene using Fe₂O₃ nanoparticles as catalyst in chemical vapor deposition. Scanning electron microscopic study showed that the efficiency of generating Fe₃O ₄@CNCs and Fe@CNTs was high, exceeding 95%. Transmission electron microscopic study confirmed the high selectivity to Fe₃O ₄@CNCs and Fe@CNTs, with the former having morphology similar to that of the catalyst particles. With Fe₃O₄ and Fe nanoparticles tightly wrapped in graphitic layers, the obtained Fe ₃O₄@CNCs and Fe@CNTs materials show high stability and good magnetic properties.

Original language	English
Pages (from-to)	12-19
Number of pages	8
Journal	Diamond and Related Materials
Volume	45
DOIs	https://doi.org/10.1016/j.diamond.2014.02.013
Publication status	Published - May 2014

User-Defined Keywords

Chemical vapor deposition
Magnetic properties
Morphology
Nanostructures

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10.1016/j.diamond.2014.02.013

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@article{da51e52f300e4012899818e81a7e88f5,

title = "Controllable synthesis, characterization, and magnetic properties of magnetic nanoparticles encapsulated in carbon nanocages and carbon nanotubes",

abstract = "By controlling the pyrolysis temperature, core/shell materials with Fe 3O4 encapsulated in carbon nanocages (Fe3O 4@CNCs) and Fe encapsulated in carbon nanotubes (Fe@CNTs) were synthesized selectively from acetylene using Fe2O3 nanoparticles as catalyst in chemical vapor deposition. Scanning electron microscopic study showed that the efficiency of generating Fe3O 4@CNCs and Fe@CNTs was high, exceeding 95\%. Transmission electron microscopic study confirmed the high selectivity to Fe3O 4@CNCs and Fe@CNTs, with the former having morphology similar to that of the catalyst particles. With Fe3O4 and Fe nanoparticles tightly wrapped in graphitic layers, the obtained Fe 3O4@CNCs and Fe@CNTs materials show high stability and good magnetic properties.",

keywords = "Chemical vapor deposition, Magnetic properties, Morphology, Nanostructures",

author = "Xiaosi Qi and Jianle Xu and Wei Zhong and Chaktong Au and Youwei Du",

note = "Funding Information: This work was supported by the Doctorial Start-up Fund of Guizhou University , the International Cooperation Project of Guizhou Province (2012–7002), the Foundation of the National Natural Science Foundation of China (Grant Nos. 11364005 and 11174132 ), and the Foundation of the National Key Project for Basic Research (Grant Nos. 2010CB923402 and 2011CB922102 ), People's Republic of China, for financial support.",

year = "2014",

month = may,

doi = "10.1016/j.diamond.2014.02.013",

language = "English",

volume = "45",

pages = "12--19",

journal = "Diamond and Related Materials",

issn = "0925-9635",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Controllable synthesis, characterization, and magnetic properties of magnetic nanoparticles encapsulated in carbon nanocages and carbon nanotubes

AU - Qi, Xiaosi

AU - Xu, Jianle

AU - Zhong, Wei

AU - Au, Chaktong

AU - Du, Youwei

N1 - Funding Information: This work was supported by the Doctorial Start-up Fund of Guizhou University , the International Cooperation Project of Guizhou Province (2012–7002), the Foundation of the National Natural Science Foundation of China (Grant Nos. 11364005 and 11174132 ), and the Foundation of the National Key Project for Basic Research (Grant Nos. 2010CB923402 and 2011CB922102 ), People's Republic of China, for financial support.

PY - 2014/5

Y1 - 2014/5

N2 - By controlling the pyrolysis temperature, core/shell materials with Fe 3O4 encapsulated in carbon nanocages (Fe3O 4@CNCs) and Fe encapsulated in carbon nanotubes (Fe@CNTs) were synthesized selectively from acetylene using Fe2O3 nanoparticles as catalyst in chemical vapor deposition. Scanning electron microscopic study showed that the efficiency of generating Fe3O 4@CNCs and Fe@CNTs was high, exceeding 95%. Transmission electron microscopic study confirmed the high selectivity to Fe3O 4@CNCs and Fe@CNTs, with the former having morphology similar to that of the catalyst particles. With Fe3O4 and Fe nanoparticles tightly wrapped in graphitic layers, the obtained Fe 3O4@CNCs and Fe@CNTs materials show high stability and good magnetic properties.

AB - By controlling the pyrolysis temperature, core/shell materials with Fe 3O4 encapsulated in carbon nanocages (Fe3O 4@CNCs) and Fe encapsulated in carbon nanotubes (Fe@CNTs) were synthesized selectively from acetylene using Fe2O3 nanoparticles as catalyst in chemical vapor deposition. Scanning electron microscopic study showed that the efficiency of generating Fe3O 4@CNCs and Fe@CNTs was high, exceeding 95%. Transmission electron microscopic study confirmed the high selectivity to Fe3O 4@CNCs and Fe@CNTs, with the former having morphology similar to that of the catalyst particles. With Fe3O4 and Fe nanoparticles tightly wrapped in graphitic layers, the obtained Fe 3O4@CNCs and Fe@CNTs materials show high stability and good magnetic properties.

KW - Chemical vapor deposition

KW - Magnetic properties

KW - Morphology

KW - Nanostructures

UR - https://www.scopus.com/pages/publications/84897433718

U2 - 10.1016/j.diamond.2014.02.013

DO - 10.1016/j.diamond.2014.02.013

M3 - Journal article

AN - SCOPUS:84897433718

SN - 0925-9635

VL - 45

SP - 12

EP - 19

JO - Diamond and Related Materials

JF - Diamond and Related Materials

ER -

Controllable synthesis, characterization, and magnetic properties of magnetic nanoparticles encapsulated in carbon nanocages and carbon nanotubes

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