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Fabrication and characterization of graphene from solid carbon dioxide

Arifutzzaman, Akhama and Yaacob, Iskandar Idris and Hawlader, Mohammad Nurul Alam and Maleque, Md. Abdul (2015) Fabrication and characterization of graphene from solid carbon dioxide. Advanced Materials Research, 1115. pp. 418-421. ISSN 1662-8985

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Abstract

Graphene was fabricated by a well-known technique of ignition of magnesium (Mg) metal ribbon in solid carbon dioxide. Two dry ice slabs were used as carbon source for the production of graphene. A hemispherical cavity of about 3-4 cm diameter was carved on surfaces of both dry ice slabs. About 0.5g of Mg ribbon was burnt and immediately placed into the dry ice cavity. It was then covered up by another carved slab of dry ice. After complete combustion, mixture of black and white residues was formed. It was then recovered. 20 ml of 1 M HCl acid was added to the product mixture. Reaction of HCl with MgO and unburned Mg formed MgCl2 which was then washed away by deionized water. The isolated carbon material was separated as product. Characterization of the product was performed using optical microscopy (OM), where images showed the presence of sheet-like light gray objects. Field emission scanning electron microscopy (FESEM) and transmission electron microscope (TEM) analyses revealed the presences of graphene. The lateral length of the sheet was about 3-3.5 µm and the surface area was about 3-5.5 µm2 using images analysis software.

Item Type: Article (Journal)
Additional Information: 6524/47950
Uncontrolled Keywords: Graphene, dry ice, magnesium (Mg), nanosheets
Subjects: T Technology > T Technology (General)
Kulliyyahs/Centres/Divisions/Institutes: Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User: Prof. Dr. Iskandar Idris Yaacob
Date Deposited: 18 Jan 2016 01:16
Last Modified: 07 Feb 2017 06:59
URI: http://irep.iium.edu.my/id/eprint/47950

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