The Effect of Alumina and Magnesia Supported Germanium Nanoparticles on the Growth of Carbon Nanotubes in the Chemical Vapor Deposition Method

Ghazaleh Allaedini, Payam Aminayi, Siti Masrinda Tasirin

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The effect of alumina and magnesia supported germanium (Ge) nanoparticles on the synthesis of carbon nanotubes (CNTs) using the chemical vapor deposition (CVD) method in atmospheric pressure was investigated. The TEM micrographs confirmed the formation of carbon nanotubes, and the field emission scanning electron microscopy (FESEM) analysis suggested a tip-growth mechanism for the grown carbon nanotubes. The X-ray diffraction (XRD) pattern indicated a graphitic nature of the carbon nanotubes. The obtained CNTs using Ge nanoparticles supported by MgO resulted in a higher degree of graphitization than the CNTs obtained using Ge nanoparticles supported by Al2O3. Raman spectroscopy analysis of the CNTs confirmed the presence of radial breathing modes (RBM), which verified the formation of CNTs. High frequency Raman analysis demonstrated that the degree of graphitization of the synthesized CNTs using magnesia supported Ge nanoparticles is higher than that of the alumina supported Ge nanoparticles with the values of (ID/IG) ratios equal to 0.45 and 0.73, respectively.

Original languageEnglish
Article number961231
JournalJournal of Nanomaterials
Volume2015
DOIs
Publication statusPublished - 2015

Fingerprint

Magnesium Oxide
Germanium
Carbon Nanotubes
Aluminum Oxide
Magnesia
Chemical vapor deposition
Carbon nanotubes
Alumina
Nanoparticles
Graphitization
Field emission
Diffraction patterns
Atmospheric pressure
Raman spectroscopy
Transmission electron microscopy

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

The Effect of Alumina and Magnesia Supported Germanium Nanoparticles on the Growth of Carbon Nanotubes in the Chemical Vapor Deposition Method. / Allaedini, Ghazaleh; Aminayi, Payam; Tasirin, Siti Masrinda.

In: Journal of Nanomaterials, Vol. 2015, 961231, 2015.

Research output: Contribution to journalArticle

@article{73191d64537b4814b3f6d5501a46819a,
title = "The Effect of Alumina and Magnesia Supported Germanium Nanoparticles on the Growth of Carbon Nanotubes in the Chemical Vapor Deposition Method",
abstract = "The effect of alumina and magnesia supported germanium (Ge) nanoparticles on the synthesis of carbon nanotubes (CNTs) using the chemical vapor deposition (CVD) method in atmospheric pressure was investigated. The TEM micrographs confirmed the formation of carbon nanotubes, and the field emission scanning electron microscopy (FESEM) analysis suggested a tip-growth mechanism for the grown carbon nanotubes. The X-ray diffraction (XRD) pattern indicated a graphitic nature of the carbon nanotubes. The obtained CNTs using Ge nanoparticles supported by MgO resulted in a higher degree of graphitization than the CNTs obtained using Ge nanoparticles supported by Al2O3. Raman spectroscopy analysis of the CNTs confirmed the presence of radial breathing modes (RBM), which verified the formation of CNTs. High frequency Raman analysis demonstrated that the degree of graphitization of the synthesized CNTs using magnesia supported Ge nanoparticles is higher than that of the alumina supported Ge nanoparticles with the values of (ID/IG) ratios equal to 0.45 and 0.73, respectively.",
author = "Ghazaleh Allaedini and Payam Aminayi and Tasirin, {Siti Masrinda}",
year = "2015",
doi = "10.1155/2015/961231",
language = "English",
volume = "2015",
journal = "Journal of Nanomaterials",
issn = "1687-4110",
publisher = "Hindawi Publishing Corporation",

}

TY - JOUR

T1 - The Effect of Alumina and Magnesia Supported Germanium Nanoparticles on the Growth of Carbon Nanotubes in the Chemical Vapor Deposition Method

AU - Allaedini, Ghazaleh

AU - Aminayi, Payam

AU - Tasirin, Siti Masrinda

PY - 2015

Y1 - 2015

N2 - The effect of alumina and magnesia supported germanium (Ge) nanoparticles on the synthesis of carbon nanotubes (CNTs) using the chemical vapor deposition (CVD) method in atmospheric pressure was investigated. The TEM micrographs confirmed the formation of carbon nanotubes, and the field emission scanning electron microscopy (FESEM) analysis suggested a tip-growth mechanism for the grown carbon nanotubes. The X-ray diffraction (XRD) pattern indicated a graphitic nature of the carbon nanotubes. The obtained CNTs using Ge nanoparticles supported by MgO resulted in a higher degree of graphitization than the CNTs obtained using Ge nanoparticles supported by Al2O3. Raman spectroscopy analysis of the CNTs confirmed the presence of radial breathing modes (RBM), which verified the formation of CNTs. High frequency Raman analysis demonstrated that the degree of graphitization of the synthesized CNTs using magnesia supported Ge nanoparticles is higher than that of the alumina supported Ge nanoparticles with the values of (ID/IG) ratios equal to 0.45 and 0.73, respectively.

AB - The effect of alumina and magnesia supported germanium (Ge) nanoparticles on the synthesis of carbon nanotubes (CNTs) using the chemical vapor deposition (CVD) method in atmospheric pressure was investigated. The TEM micrographs confirmed the formation of carbon nanotubes, and the field emission scanning electron microscopy (FESEM) analysis suggested a tip-growth mechanism for the grown carbon nanotubes. The X-ray diffraction (XRD) pattern indicated a graphitic nature of the carbon nanotubes. The obtained CNTs using Ge nanoparticles supported by MgO resulted in a higher degree of graphitization than the CNTs obtained using Ge nanoparticles supported by Al2O3. Raman spectroscopy analysis of the CNTs confirmed the presence of radial breathing modes (RBM), which verified the formation of CNTs. High frequency Raman analysis demonstrated that the degree of graphitization of the synthesized CNTs using magnesia supported Ge nanoparticles is higher than that of the alumina supported Ge nanoparticles with the values of (ID/IG) ratios equal to 0.45 and 0.73, respectively.

UR - http://www.scopus.com/inward/record.url?scp=84944242891&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84944242891&partnerID=8YFLogxK

U2 - 10.1155/2015/961231

DO - 10.1155/2015/961231

M3 - Article

AN - SCOPUS:84944242891

VL - 2015

JO - Journal of Nanomaterials

JF - Journal of Nanomaterials

SN - 1687-4110

M1 - 961231

ER -