Effect of milling parameters on the dispersion characteristics of multi-walled carbon nanotubes in transition metal oxides

S. S. Lephuthing; A. M. Okoro; M. Lesufi; O. O. Ige; P. A. Olubambi

doi:10.1088/1757-899X/430/1/012002

Effect of milling parameters on the dispersion characteristics of multi-walled carbon nanotubes in transition metal oxides

S. S. Lephuthing, A. M. Okoro, M. Lesufi, O. O. Ige, P. A. Olubambi

Metallurgy

University of Johannesburg

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

6 Citations (Scopus)

Abstract

In this research investigation on milling parameters to achieve uniform dispersion of multi-walled carbon nanotubes (MWCNTs) was conducted. High-energy ball milling (HEBM) technique was adopted to disperse 1 wt. % MWCNTs in titanium and manganese oxides with ball to powder ratio (BPR) of 10:1 at 6 and 9 hours milling times. Scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD) were used to characterize the as-received MWCNTs and admixed composite powders. The results indicated that HEBM was an effective route to disperse MWCNTs in transition metal oxides. In addition, the characteristics of admixed powders evidently showed that the increase of milling time effectively dispersed the MWCNTs in titanium and manganese oxide respectively, however deformation of sidewalls of MWCNTs was observed due to harsh milling conditions that resulted on non-sp² defects in the MWCNTs.

Original language	English
Article number	012002
Journal	IOP Conference Series: Materials Science and Engineering
Volume	430
Issue number	1
DOIs	https://doi.org/10.1088/1757-899X/430/1/012002
Publication status	Published - 2 Oct 2018
Event	2018 Conference of the South African Advanced Materials Initiative, CoSAAMI 2018 - Vanderbijlpark, South Africa Duration: 23 Oct 2018 → 26 Oct 2018

ASJC Scopus subject areas

General Materials Science
General Engineering

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10.1088/1757-899X/430/1/012002

Cite this

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title = "Effect of milling parameters on the dispersion characteristics of multi-walled carbon nanotubes in transition metal oxides",

abstract = "In this research investigation on milling parameters to achieve uniform dispersion of multi-walled carbon nanotubes (MWCNTs) was conducted. High-energy ball milling (HEBM) technique was adopted to disperse 1 wt. % MWCNTs in titanium and manganese oxides with ball to powder ratio (BPR) of 10:1 at 6 and 9 hours milling times. Scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD) were used to characterize the as-received MWCNTs and admixed composite powders. The results indicated that HEBM was an effective route to disperse MWCNTs in transition metal oxides. In addition, the characteristics of admixed powders evidently showed that the increase of milling time effectively dispersed the MWCNTs in titanium and manganese oxide respectively, however deformation of sidewalls of MWCNTs was observed due to harsh milling conditions that resulted on non-sp2 defects in the MWCNTs.",

author = "Lephuthing, {S. S.} and Okoro, {A. M.} and M. Lesufi and Ige, {O. O.} and Olubambi, {P. A.}",

note = "Publisher Copyright: {\textcopyright} 2018 Institute of Physics Publishing. All rights reserved.; 2018 Conference of the South African Advanced Materials Initiative, CoSAAMI 2018 ; Conference date: 23-10-2018 Through 26-10-2018",

year = "2018",

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doi = "10.1088/1757-899X/430/1/012002",

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T1 - Effect of milling parameters on the dispersion characteristics of multi-walled carbon nanotubes in transition metal oxides

AU - Lephuthing, S. S.

AU - Okoro, A. M.

AU - Lesufi, M.

AU - Ige, O. O.

AU - Olubambi, P. A.

PY - 2018/10/2

Y1 - 2018/10/2

N2 - In this research investigation on milling parameters to achieve uniform dispersion of multi-walled carbon nanotubes (MWCNTs) was conducted. High-energy ball milling (HEBM) technique was adopted to disperse 1 wt. % MWCNTs in titanium and manganese oxides with ball to powder ratio (BPR) of 10:1 at 6 and 9 hours milling times. Scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD) were used to characterize the as-received MWCNTs and admixed composite powders. The results indicated that HEBM was an effective route to disperse MWCNTs in transition metal oxides. In addition, the characteristics of admixed powders evidently showed that the increase of milling time effectively dispersed the MWCNTs in titanium and manganese oxide respectively, however deformation of sidewalls of MWCNTs was observed due to harsh milling conditions that resulted on non-sp2 defects in the MWCNTs.

AB - In this research investigation on milling parameters to achieve uniform dispersion of multi-walled carbon nanotubes (MWCNTs) was conducted. High-energy ball milling (HEBM) technique was adopted to disperse 1 wt. % MWCNTs in titanium and manganese oxides with ball to powder ratio (BPR) of 10:1 at 6 and 9 hours milling times. Scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD) were used to characterize the as-received MWCNTs and admixed composite powders. The results indicated that HEBM was an effective route to disperse MWCNTs in transition metal oxides. In addition, the characteristics of admixed powders evidently showed that the increase of milling time effectively dispersed the MWCNTs in titanium and manganese oxide respectively, however deformation of sidewalls of MWCNTs was observed due to harsh milling conditions that resulted on non-sp2 defects in the MWCNTs.

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U2 - 10.1088/1757-899X/430/1/012002

DO - 10.1088/1757-899X/430/1/012002

M3 - Conference article

AN - SCOPUS:85054795321

SN - 1757-8981

VL - 430

JO - IOP Conference Series: Materials Science and Engineering

JF - IOP Conference Series: Materials Science and Engineering

IS - 1

M1 - 012002

T2 - 2018 Conference of the South African Advanced Materials Initiative, CoSAAMI 2018

Y2 - 23 October 2018 through 26 October 2018

ER -

Effect of milling parameters on the dispersion characteristics of multi-walled carbon nanotubes in transition metal oxides

Abstract

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