Effects of processing parameters on production of graphene by mechanical exfoliation

Graphene, a monolayer form of carbon with two dimensional honeycomb lattices (sp2 Hybridization) has shown excellent mechanical, electrical, thermal and optical properties. It is a promising component for many applications in the fields of electronics, composites, sensors as well as energy storage a...

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Main Author:	Muhamad Zarif, Anuar
Format:	Undergraduates Project Papers
Language:	English English English English
Published:	2017
Subjects:	QD Chemistry TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/23522/ http://umpir.ump.edu.my/id/eprint/23522/ http://umpir.ump.edu.my/id/eprint/23522/1/Effects%20of%20processing%20parameters%20on%20production%20of%20graphene%20by%20mechanical%20exfoliation%20-%20Table%20of%20contents.pdf http://umpir.ump.edu.my/id/eprint/23522/2/Effects%20of%20processing%20parameters%20on%20production%20of%20graphene%20by%20mechanical%20exfoliation%20-%20Abstract.pdf http://umpir.ump.edu.my/id/eprint/23522/3/Effects%20of%20processing%20parameters%20on%20production%20of%20graphene%20by%20mechanical%20exfoliation%20-%20Chapter%201.pdf http://umpir.ump.edu.my/id/eprint/23522/4/Effects%20of%20processing%20parameters%20on%20production%20of%20graphene%20by%20mechanical%20exfoliation%20-%20References.pdf

id	ump-23522
recordtype	eprints
spelling	ump-235222018-12-31T04:13:47Z http://umpir.ump.edu.my/id/eprint/23522/ Effects of processing parameters on production of graphene by mechanical exfoliation Muhamad Zarif, Anuar QD Chemistry TP Chemical technology Graphene, a monolayer form of carbon with two dimensional honeycomb lattices (sp2 Hybridization) has shown excellent mechanical, electrical, thermal and optical properties. It is a promising component for many applications in the fields of electronics, composites, sensors as well as energy storage and conversion devices. These engineering applications require availability of graphene on the mass scale and thus suitable processes are necessary for its production down to few sheets level. In the present work, the objective is to study the effect of processing parameter on preparation of graphene at large scale by liquid phase exfoliation of graphite assisted by ultra sound to promote the intercalation and expansion of graphite by using homogenizer. Water and tea polyphenol was choose and act as a dispersion agent and antioxidant. From the result, it is found that the graphene dispersion concentration is increased when the sonication time and power increased with the highest concentration of 1.0699 mg/ml. But, by controlling the centrifuged speed, the result shows no influenced on dispersion concentration. In Addition, the size of the sheets also become smaller when increasing sonication time and power. However, from the XRD analysis, it can be conclude that the graphite only partially exfoliated with the stack of several or tens of single layer graphite. Therefore, by controlling LPE critical parameter likes sonication power, sonication time and centrifuged speed, graphene can produce at high scale. 2017 Undergraduates Project Papers NonPeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/23522/1/Effects%20of%20processing%20parameters%20on%20production%20of%20graphene%20by%20mechanical%20exfoliation%20-%20Table%20of%20contents.pdf pdf en http://umpir.ump.edu.my/id/eprint/23522/2/Effects%20of%20processing%20parameters%20on%20production%20of%20graphene%20by%20mechanical%20exfoliation%20-%20Abstract.pdf pdf en http://umpir.ump.edu.my/id/eprint/23522/3/Effects%20of%20processing%20parameters%20on%20production%20of%20graphene%20by%20mechanical%20exfoliation%20-%20Chapter%201.pdf pdf en http://umpir.ump.edu.my/id/eprint/23522/4/Effects%20of%20processing%20parameters%20on%20production%20of%20graphene%20by%20mechanical%20exfoliation%20-%20References.pdf Muhamad Zarif, Anuar (2017) Effects of processing parameters on production of graphene by mechanical exfoliation. Faculty of Chemical & Natural Resources Engineering, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:102936&theme=UMP2
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English English English English
topic	QD Chemistry TP Chemical technology
spellingShingle	QD Chemistry TP Chemical technology Muhamad Zarif, Anuar Effects of processing parameters on production of graphene by mechanical exfoliation
description	Graphene, a monolayer form of carbon with two dimensional honeycomb lattices (sp2 Hybridization) has shown excellent mechanical, electrical, thermal and optical properties. It is a promising component for many applications in the fields of electronics, composites, sensors as well as energy storage and conversion devices. These engineering applications require availability of graphene on the mass scale and thus suitable processes are necessary for its production down to few sheets level. In the present work, the objective is to study the effect of processing parameter on preparation of graphene at large scale by liquid phase exfoliation of graphite assisted by ultra sound to promote the intercalation and expansion of graphite by using homogenizer. Water and tea polyphenol was choose and act as a dispersion agent and antioxidant. From the result, it is found that the graphene dispersion concentration is increased when the sonication time and power increased with the highest concentration of 1.0699 mg/ml. But, by controlling the centrifuged speed, the result shows no influenced on dispersion concentration. In Addition, the size of the sheets also become smaller when increasing sonication time and power. However, from the XRD analysis, it can be conclude that the graphite only partially exfoliated with the stack of several or tens of single layer graphite. Therefore, by controlling LPE critical parameter likes sonication power, sonication time and centrifuged speed, graphene can produce at high scale.
format	Undergraduates Project Papers
author	Muhamad Zarif, Anuar
author_facet	Muhamad Zarif, Anuar
author_sort	Muhamad Zarif, Anuar
title	Effects of processing parameters on production of graphene by mechanical exfoliation
title_short	Effects of processing parameters on production of graphene by mechanical exfoliation
title_full	Effects of processing parameters on production of graphene by mechanical exfoliation
title_fullStr	Effects of processing parameters on production of graphene by mechanical exfoliation
title_full_unstemmed	Effects of processing parameters on production of graphene by mechanical exfoliation
title_sort	effects of processing parameters on production of graphene by mechanical exfoliation
publishDate	2017
url	http://umpir.ump.edu.my/id/eprint/23522/ http://umpir.ump.edu.my/id/eprint/23522/ http://umpir.ump.edu.my/id/eprint/23522/1/Effects%20of%20processing%20parameters%20on%20production%20of%20graphene%20by%20mechanical%20exfoliation%20-%20Table%20of%20contents.pdf http://umpir.ump.edu.my/id/eprint/23522/2/Effects%20of%20processing%20parameters%20on%20production%20of%20graphene%20by%20mechanical%20exfoliation%20-%20Abstract.pdf http://umpir.ump.edu.my/id/eprint/23522/3/Effects%20of%20processing%20parameters%20on%20production%20of%20graphene%20by%20mechanical%20exfoliation%20-%20Chapter%201.pdf http://umpir.ump.edu.my/id/eprint/23522/4/Effects%20of%20processing%20parameters%20on%20production%20of%20graphene%20by%20mechanical%20exfoliation%20-%20References.pdf
first_indexed	2023-09-18T22:35:15Z
last_indexed	2023-09-18T22:35:15Z
_version_	1777416552606334976

Effects of processing parameters on production of graphene by mechanical exfoliation

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