Penyerakan koloid grafin dalam pelbagai pelarut organik

Translated title of the contribution: Graphene colloidal dispersion in various organic solvents

Ainee Fatimah Ahmad, Fatin Humaizah Abd Moin, Hur Munawar Kabir Mohd, Irman Abdul Rahman, Faizal K.P. Kunchi Mohamed, Chin Hua Chia, Suria Ramli, Shahidan Radiman

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Graphene is an atom thick carbon-based material that has many intriguing physical and chemicals properties. Since stacks of graphene form graphite, graphene can be produce by chemical exfoliation of graphite in surfactant solution. In this study, the colloidal dispersions of graphene in a variety of organic solvents such as isopropanol, tetrahydrofuran (THF),N-methylpyrrolidone (NMP) and gamma-butyrolactone (GBL) were prepared. Dispersion by bath sonication provides mechanical disruption that breaks apart the graphite flakes, which is then sterically stabilized in the solvent system. FTIR analysis has confirmed the presence of the C=C groups in the samples. By analyzing bright-field TEM images obtained from each dispersion, we have found that the graphene dispersed in isopropanol and THF are multilayered, wrinkled and overlapping graphene sheets; while samples in NMP and GBL are less thick with predominantly folded graphene sheets. The stronger solvents such as NMP and GBL are more effective than isopropanol and THF in obtaining stable graphene dispersions. This will be useful for self-assembly work by dip-coating or monolayer method in the future.

Original languageUndefined/Unknown
Pages (from-to)475-480
Number of pages6
JournalMalaysian Journal of Analytical Sciences
Volume17
Issue number3
Publication statusPublished - 2013

Fingerprint

Graphite
Organic solvents
4-Butyrolactone
2-Propanol
Dispersions
Sonication
Surface-Active Agents
Self assembly
Chemical properties
Monolayers
Carbon
Physical properties
Transmission electron microscopy

Keywords

  • Fourier transform infrared spectroscopy (FTIR)
  • Gamma-butyrolactone (GBL)
  • Graphene
  • N-methylpyrrolidone (NMP)
  • Tetrahydrofuran (THF)

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Penyerakan koloid grafin dalam pelbagai pelarut organik. / Ahmad, Ainee Fatimah; Moin, Fatin Humaizah Abd; Mohd, Hur Munawar Kabir; Abdul Rahman, Irman; K.P. Kunchi Mohamed, Faizal; Chia, Chin Hua; Ramli, Suria; Radiman, Shahidan.

In: Malaysian Journal of Analytical Sciences, Vol. 17, No. 3, 2013, p. 475-480.

Research output: Contribution to journalArticle

Ahmad, Ainee Fatimah ; Moin, Fatin Humaizah Abd ; Mohd, Hur Munawar Kabir ; Abdul Rahman, Irman ; K.P. Kunchi Mohamed, Faizal ; Chia, Chin Hua ; Ramli, Suria ; Radiman, Shahidan. / Penyerakan koloid grafin dalam pelbagai pelarut organik. In: Malaysian Journal of Analytical Sciences. 2013 ; Vol. 17, No. 3. pp. 475-480.
@article{b9e67060260f425c9fb6a7738a024d59,
title = "Penyerakan koloid grafin dalam pelbagai pelarut organik",
abstract = "Graphene is an atom thick carbon-based material that has many intriguing physical and chemicals properties. Since stacks of graphene form graphite, graphene can be produce by chemical exfoliation of graphite in surfactant solution. In this study, the colloidal dispersions of graphene in a variety of organic solvents such as isopropanol, tetrahydrofuran (THF),N-methylpyrrolidone (NMP) and gamma-butyrolactone (GBL) were prepared. Dispersion by bath sonication provides mechanical disruption that breaks apart the graphite flakes, which is then sterically stabilized in the solvent system. FTIR analysis has confirmed the presence of the C=C groups in the samples. By analyzing bright-field TEM images obtained from each dispersion, we have found that the graphene dispersed in isopropanol and THF are multilayered, wrinkled and overlapping graphene sheets; while samples in NMP and GBL are less thick with predominantly folded graphene sheets. The stronger solvents such as NMP and GBL are more effective than isopropanol and THF in obtaining stable graphene dispersions. This will be useful for self-assembly work by dip-coating or monolayer method in the future.",
keywords = "Fourier transform infrared spectroscopy (FTIR), Gamma-butyrolactone (GBL), Graphene, N-methylpyrrolidone (NMP), Tetrahydrofuran (THF)",
author = "Ahmad, {Ainee Fatimah} and Moin, {Fatin Humaizah Abd} and Mohd, {Hur Munawar Kabir} and {Abdul Rahman}, Irman and {K.P. Kunchi Mohamed}, Faizal and Chia, {Chin Hua} and Suria Ramli and Shahidan Radiman",
year = "2013",
language = "Undefined/Unknown",
volume = "17",
pages = "475--480",
journal = "Malaysian Journal of Analytical Sciences",
issn = "1394-2506",
publisher = "Faculty of Science and Technology, Universiti Kebangsaan Malaysia",
number = "3",

}

TY - JOUR

T1 - Penyerakan koloid grafin dalam pelbagai pelarut organik

AU - Ahmad, Ainee Fatimah

AU - Moin, Fatin Humaizah Abd

AU - Mohd, Hur Munawar Kabir

AU - Abdul Rahman, Irman

AU - K.P. Kunchi Mohamed, Faizal

AU - Chia, Chin Hua

AU - Ramli, Suria

AU - Radiman, Shahidan

PY - 2013

Y1 - 2013

N2 - Graphene is an atom thick carbon-based material that has many intriguing physical and chemicals properties. Since stacks of graphene form graphite, graphene can be produce by chemical exfoliation of graphite in surfactant solution. In this study, the colloidal dispersions of graphene in a variety of organic solvents such as isopropanol, tetrahydrofuran (THF),N-methylpyrrolidone (NMP) and gamma-butyrolactone (GBL) were prepared. Dispersion by bath sonication provides mechanical disruption that breaks apart the graphite flakes, which is then sterically stabilized in the solvent system. FTIR analysis has confirmed the presence of the C=C groups in the samples. By analyzing bright-field TEM images obtained from each dispersion, we have found that the graphene dispersed in isopropanol and THF are multilayered, wrinkled and overlapping graphene sheets; while samples in NMP and GBL are less thick with predominantly folded graphene sheets. The stronger solvents such as NMP and GBL are more effective than isopropanol and THF in obtaining stable graphene dispersions. This will be useful for self-assembly work by dip-coating or monolayer method in the future.

AB - Graphene is an atom thick carbon-based material that has many intriguing physical and chemicals properties. Since stacks of graphene form graphite, graphene can be produce by chemical exfoliation of graphite in surfactant solution. In this study, the colloidal dispersions of graphene in a variety of organic solvents such as isopropanol, tetrahydrofuran (THF),N-methylpyrrolidone (NMP) and gamma-butyrolactone (GBL) were prepared. Dispersion by bath sonication provides mechanical disruption that breaks apart the graphite flakes, which is then sterically stabilized in the solvent system. FTIR analysis has confirmed the presence of the C=C groups in the samples. By analyzing bright-field TEM images obtained from each dispersion, we have found that the graphene dispersed in isopropanol and THF are multilayered, wrinkled and overlapping graphene sheets; while samples in NMP and GBL are less thick with predominantly folded graphene sheets. The stronger solvents such as NMP and GBL are more effective than isopropanol and THF in obtaining stable graphene dispersions. This will be useful for self-assembly work by dip-coating or monolayer method in the future.

KW - Fourier transform infrared spectroscopy (FTIR)

KW - Gamma-butyrolactone (GBL)

KW - Graphene

KW - N-methylpyrrolidone (NMP)

KW - Tetrahydrofuran (THF)

UR - http://www.scopus.com/inward/record.url?scp=84888864060&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84888864060&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:84888864060

VL - 17

SP - 475

EP - 480

JO - Malaysian Journal of Analytical Sciences

JF - Malaysian Journal of Analytical Sciences

SN - 1394-2506

IS - 3

ER -