Carbon-nanotube growth over iron nanoparticles formed on CaCO3 support by using hydrogen reduction

Nguyen Duc Dung; Nguyen Van Chuc; Ngo Thi Thanh Tam; Nguyen Hong Quang; Phan Hong Khoi; Phan Ngoc Minh

doi:10.3938/jkps.52.1372

Carbon-nanotube growth over iron nanoparticles formed on CaCO₃ support by using hydrogen reduction

Nguyen Duc Dung, Nguyen Van Chuc, Ngo Thi Thanh Tam, Nguyen Hong Quang, Phan Hong Khoi, Phan Ngoc Minh

Vietnamese Academy of Science and Technology

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

16 Scopus citations

Abstract

Carbon nanotubes (CNTs) were grown by chemical vapor deposition on a mixture of iron salt and CaCO₃. Salt mixtures of Fe(NO ₃)₃·9H₂O/CaCO₃ and FeCl ₃·6H₂O/CaCO₃ with various Fe weight contents were used as catalysts for growing the CNTs. A scanning electron microscope study revealed that the CNTs were densely grown on the Fe(NO ₃)₃·9H₂O/CaCO₃ catalyst containing 5 wt.% Fe. The effect of growth temperature on the segregation of Fe nanoparticles formed by hydrogen reduction is discussed. The result shows that 800 °C is the optimal temperature for the formation of Fe nanoparticles over which CNTs grow with the highest yield of 78.61 %. A raman spectroscope and a scanning transmission electron microscope were utilized to characterize the multiwall structure of the CNTs. The 92.16 % purity of the CNTs was determined by using thermal gravimetric analysis.

Original language	English
Pages (from-to)	1372-1377
Number of pages	6
Journal	Journal of the Korean Physical Society
Volume	52
Issue number	5
DOIs	https://doi.org/10.3938/jkps.52.1372
State	Published - 05 2008
Externally published	Yes

Keywords

CaCO
CNTs
CVD
FeCl

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10.3938/jkps.52.1372

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title = "Carbon-nanotube growth over iron nanoparticles formed on CaCO3 support by using hydrogen reduction",

abstract = "Carbon nanotubes (CNTs) were grown by chemical vapor deposition on a mixture of iron salt and CaCO3. Salt mixtures of Fe(NO 3)3·9H2O/CaCO3 and FeCl 3·6H2O/CaCO3 with various Fe weight contents were used as catalysts for growing the CNTs. A scanning electron microscope study revealed that the CNTs were densely grown on the Fe(NO 3)3·9H2O/CaCO3 catalyst containing 5 wt.% Fe. The effect of growth temperature on the segregation of Fe nanoparticles formed by hydrogen reduction is discussed. The result shows that 800 °C is the optimal temperature for the formation of Fe nanoparticles over which CNTs grow with the highest yield of 78.61 %. A raman spectroscope and a scanning transmission electron microscope were utilized to characterize the multiwall structure of the CNTs. The 92.16 % purity of the CNTs was determined by using thermal gravimetric analysis.",

keywords = "CaCO, CNTs, CVD, FeCl",

author = "Dung, {Nguyen Duc} and {Van Chuc}, Nguyen and Tam, {Ngo Thi Thanh} and Quang, {Nguyen Hong} and Khoi, {Phan Hong} and Minh, {Phan Ngoc}",

year = "2008",

month = may,

doi = "10.3938/jkps.52.1372",

language = "英语",

volume = "52",

pages = "1372--1377",

journal = "Journal of the Korean Physical Society",

issn = "0374-4884",

publisher = "Korean Physical Society",

number = "5",

}

TY - JOUR

T1 - Carbon-nanotube growth over iron nanoparticles formed on CaCO3 support by using hydrogen reduction

AU - Dung, Nguyen Duc

AU - Van Chuc, Nguyen

AU - Tam, Ngo Thi Thanh

AU - Quang, Nguyen Hong

AU - Khoi, Phan Hong

AU - Minh, Phan Ngoc

PY - 2008/5

Y1 - 2008/5

N2 - Carbon nanotubes (CNTs) were grown by chemical vapor deposition on a mixture of iron salt and CaCO3. Salt mixtures of Fe(NO 3)3·9H2O/CaCO3 and FeCl 3·6H2O/CaCO3 with various Fe weight contents were used as catalysts for growing the CNTs. A scanning electron microscope study revealed that the CNTs were densely grown on the Fe(NO 3)3·9H2O/CaCO3 catalyst containing 5 wt.% Fe. The effect of growth temperature on the segregation of Fe nanoparticles formed by hydrogen reduction is discussed. The result shows that 800 °C is the optimal temperature for the formation of Fe nanoparticles over which CNTs grow with the highest yield of 78.61 %. A raman spectroscope and a scanning transmission electron microscope were utilized to characterize the multiwall structure of the CNTs. The 92.16 % purity of the CNTs was determined by using thermal gravimetric analysis.

AB - Carbon nanotubes (CNTs) were grown by chemical vapor deposition on a mixture of iron salt and CaCO3. Salt mixtures of Fe(NO 3)3·9H2O/CaCO3 and FeCl 3·6H2O/CaCO3 with various Fe weight contents were used as catalysts for growing the CNTs. A scanning electron microscope study revealed that the CNTs were densely grown on the Fe(NO 3)3·9H2O/CaCO3 catalyst containing 5 wt.% Fe. The effect of growth temperature on the segregation of Fe nanoparticles formed by hydrogen reduction is discussed. The result shows that 800 °C is the optimal temperature for the formation of Fe nanoparticles over which CNTs grow with the highest yield of 78.61 %. A raman spectroscope and a scanning transmission electron microscope were utilized to characterize the multiwall structure of the CNTs. The 92.16 % purity of the CNTs was determined by using thermal gravimetric analysis.

KW - CaCO

KW - CNTs

KW - CVD

KW - FeCl

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U2 - 10.3938/jkps.52.1372

DO - 10.3938/jkps.52.1372

M3 - 文章

AN - SCOPUS:44649187446

SN - 0374-4884

VL - 52

SP - 1372

EP - 1377

JO - Journal of the Korean Physical Society

JF - Journal of the Korean Physical Society

IS - 5

ER -

Carbon-nanotube growth over iron nanoparticles formed on CaCO₃ support by using hydrogen reduction

Abstract

Keywords

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