Magnetic Fe catalyst particles in the vapor-phase-grown multi-walled carbon nanotubes

Jae Won Jang; Kyu Won Lee; I. H. Oh; E. M. Lee; I. M. Kim; Cheol Eui Lee; C. J. Lee

doi:10.1016/j.ssc.2008.01.005

Magnetic Fe catalyst particles in the vapor-phase-grown multi-walled carbon nanotubes

Jae Won Jang, Kyu Won Lee, I. H. Oh, E. M. Lee, I. M. Kim, Cheol Eui Lee, C. J. Lee

Division of System Semiconductor

Korea University

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Control of the magnetic Fe catalyst particle size encapsulated in multi-walled carbon nanotubes (MWNTs) was obtained by means of the vapor-phase growth employing different reaction gas flow rates. According to our structural and magnetic investigation, the magnetic encapsulation in the MWNTs consists of α-Fe core particles and interfacial Fe₃C surrounding them. Characteristic α-Fe particle size dependence of the coercivity was revealed, and the coercivity as well as the anisotropy were shown to be dictated by the interfacial Fe₃C.

Original language	English
Pages (from-to)	561-564
Number of pages	4
Journal	Solid State Communications
Volume	145
Issue number	11-12
DOIs	https://doi.org/10.1016/j.ssc.2008.01.005
State	Published - Mar 2008

Keywords

A. Magnetically ordered materials
A. Nanostructures
B. Nanofabrications

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10.1016/j.ssc.2008.01.005

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title = "Magnetic Fe catalyst particles in the vapor-phase-grown multi-walled carbon nanotubes",

abstract = "Control of the magnetic Fe catalyst particle size encapsulated in multi-walled carbon nanotubes (MWNTs) was obtained by means of the vapor-phase growth employing different reaction gas flow rates. According to our structural and magnetic investigation, the magnetic encapsulation in the MWNTs consists of α-Fe core particles and interfacial Fe3C surrounding them. Characteristic α-Fe particle size dependence of the coercivity was revealed, and the coercivity as well as the anisotropy were shown to be dictated by the interfacial Fe3C.",

keywords = "A. Magnetically ordered materials, A. Nanostructures, B. Nanofabrications",

author = "Jang, {Jae Won} and Lee, {Kyu Won} and Oh, {I. H.} and Lee, {E. M.} and Kim, {I. M.} and Lee, {Cheol Eui} and Lee, {C. J.}",

year = "2008",

month = mar,

doi = "10.1016/j.ssc.2008.01.005",

language = "English",

volume = "145",

pages = "561--564",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier Ltd",

number = "11-12",

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TY - JOUR

T1 - Magnetic Fe catalyst particles in the vapor-phase-grown multi-walled carbon nanotubes

AU - Jang, Jae Won

AU - Lee, Kyu Won

AU - Oh, I. H.

AU - Lee, E. M.

AU - Kim, I. M.

AU - Lee, Cheol Eui

AU - Lee, C. J.

PY - 2008/3

Y1 - 2008/3

N2 - Control of the magnetic Fe catalyst particle size encapsulated in multi-walled carbon nanotubes (MWNTs) was obtained by means of the vapor-phase growth employing different reaction gas flow rates. According to our structural and magnetic investigation, the magnetic encapsulation in the MWNTs consists of α-Fe core particles and interfacial Fe3C surrounding them. Characteristic α-Fe particle size dependence of the coercivity was revealed, and the coercivity as well as the anisotropy were shown to be dictated by the interfacial Fe3C.

AB - Control of the magnetic Fe catalyst particle size encapsulated in multi-walled carbon nanotubes (MWNTs) was obtained by means of the vapor-phase growth employing different reaction gas flow rates. According to our structural and magnetic investigation, the magnetic encapsulation in the MWNTs consists of α-Fe core particles and interfacial Fe3C surrounding them. Characteristic α-Fe particle size dependence of the coercivity was revealed, and the coercivity as well as the anisotropy were shown to be dictated by the interfacial Fe3C.

KW - A. Magnetically ordered materials

KW - A. Nanostructures

KW - B. Nanofabrications

UR - http://www.scopus.com/inward/record.url?scp=39149144806&partnerID=8YFLogxK

U2 - 10.1016/j.ssc.2008.01.005

DO - 10.1016/j.ssc.2008.01.005

M3 - Article

AN - SCOPUS:39149144806

SN - 0038-1098

VL - 145

SP - 561

EP - 564

JO - Solid State Communications

JF - Solid State Communications

IS - 11-12

ER -

Magnetic Fe catalyst particles in the vapor-phase-grown multi-walled carbon nanotubes

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Keywords

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