High-quality single-walled carbon nanotubes synthesized by catalytic decomposition of xylene over Fe-Mo/MgO catalyst and their field emission properties

Hui Zhang; Dong Hoon Shin; Heon Sang Lee; Cheol Jin Lee

doi:10.1021/jp071948j

High-quality single-walled carbon nanotubes synthesized by catalytic decomposition of xylene over Fe-Mo/MgO catalyst and their field emission properties

Hui Zhang
, Dong Hoon Shin
, Heon Sang Lee
, Cheol Jin Lee^*

^*Corresponding author for this work

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

15 Citations (Scopus)

Abstract

High-quality single-walled carbon nanotubes (SWCNTs) were synthesized over Fe-Mo/MgO catalyst by catalytic decomposition of xylene. The synthesized carbon material revealed bundled SWCNTs with few defects and amorphous carbon and revealed that the SWCNTs having diameters of about 0.84-1.60 nm dominated in the product. The product yield of the high-quality SWCNTs was about 63 wt % relative to the weight of the catalyst. The SWCNTs showed the low turn-on field 1.0 V/μm at a current density of 10^-8 A/cm² and the high emission current density of 2.0 mA/cm² at an applied field of about 3.0 V/μm. The lifetime measurement of SWCNT emitter revealed good emission stability for 20 h during constant DC applied bias. It is considered that the SWCNTs produced by xylene can be used as effective field emitters.

Original language	English
Pages (from-to)	12954-12959
Number of pages	6
Journal	Journal of Physical Chemistry C
Volume	111
Issue number	35
DOIs	https://doi.org/10.1021/jp071948j
Publication status	Published - 2007 Sept 6

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
General Energy
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

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title = "High-quality single-walled carbon nanotubes synthesized by catalytic decomposition of xylene over Fe-Mo/MgO catalyst and their field emission properties",

abstract = "High-quality single-walled carbon nanotubes (SWCNTs) were synthesized over Fe-Mo/MgO catalyst by catalytic decomposition of xylene. The synthesized carbon material revealed bundled SWCNTs with few defects and amorphous carbon and revealed that the SWCNTs having diameters of about 0.84-1.60 nm dominated in the product. The product yield of the high-quality SWCNTs was about 63 wt \% relative to the weight of the catalyst. The SWCNTs showed the low turn-on field 1.0 V/μm at a current density of 10-8 A/cm2 and the high emission current density of 2.0 mA/cm2 at an applied field of about 3.0 V/μm. The lifetime measurement of SWCNT emitter revealed good emission stability for 20 h during constant DC applied bias. It is considered that the SWCNTs produced by xylene can be used as effective field emitters.",

author = "Hui Zhang and Shin, \{Dong Hoon\} and Lee, \{Heon Sang\} and Lee, \{Cheol Jin\}",

year = "2007",

month = sep,

day = "6",

doi = "10.1021/jp071948j",

language = "English",

volume = "111",

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journal = "Journal of Physical Chemistry C",

issn = "1932-7447",

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T1 - High-quality single-walled carbon nanotubes synthesized by catalytic decomposition of xylene over Fe-Mo/MgO catalyst and their field emission properties

AU - Zhang, Hui

AU - Shin, Dong Hoon

AU - Lee, Heon Sang

AU - Lee, Cheol Jin

PY - 2007/9/6

Y1 - 2007/9/6

N2 - High-quality single-walled carbon nanotubes (SWCNTs) were synthesized over Fe-Mo/MgO catalyst by catalytic decomposition of xylene. The synthesized carbon material revealed bundled SWCNTs with few defects and amorphous carbon and revealed that the SWCNTs having diameters of about 0.84-1.60 nm dominated in the product. The product yield of the high-quality SWCNTs was about 63 wt % relative to the weight of the catalyst. The SWCNTs showed the low turn-on field 1.0 V/μm at a current density of 10-8 A/cm2 and the high emission current density of 2.0 mA/cm2 at an applied field of about 3.0 V/μm. The lifetime measurement of SWCNT emitter revealed good emission stability for 20 h during constant DC applied bias. It is considered that the SWCNTs produced by xylene can be used as effective field emitters.

AB - High-quality single-walled carbon nanotubes (SWCNTs) were synthesized over Fe-Mo/MgO catalyst by catalytic decomposition of xylene. The synthesized carbon material revealed bundled SWCNTs with few defects and amorphous carbon and revealed that the SWCNTs having diameters of about 0.84-1.60 nm dominated in the product. The product yield of the high-quality SWCNTs was about 63 wt % relative to the weight of the catalyst. The SWCNTs showed the low turn-on field 1.0 V/μm at a current density of 10-8 A/cm2 and the high emission current density of 2.0 mA/cm2 at an applied field of about 3.0 V/μm. The lifetime measurement of SWCNT emitter revealed good emission stability for 20 h during constant DC applied bias. It is considered that the SWCNTs produced by xylene can be used as effective field emitters.

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DO - 10.1021/jp071948j

M3 - Article

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SN - 1932-7447

VL - 111

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JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 35

ER -

High-quality single-walled carbon nanotubes synthesized by catalytic decomposition of xylene over Fe-Mo/MgO catalyst and their field emission properties

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