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Synthesis and characterization of a two-step reduced Graphene Oxide for antena applications in the microwave resime

Master of Science in Materials Engineering

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Bibliographic Details
Main Author: Mubaraq Hans, Von Schleusingen
Other Authors: Mohd Noor, Ahmad, Prof. Dr.
Format: Thesis
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2017
Subjects:
Graphene
Antennas, Horn
Antenna radiation patterns
Antennas (Electronics)
Graphene Oxide
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77979
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spelling my.unimap-779792023-03-06T02:03:48Z Synthesis and characterization of a two-step reduced Graphene Oxide for antena applications in the microwave resime Mubaraq Hans, Von Schleusingen Mohd Noor, Ahmad, Prof. Dr. Graphene Antennas, Horn Antenna radiation patterns Antennas (Electronics) Graphene Oxide Master of Science in Materials Engineering This thesis presents the development of a two-step reduced graphene oxide that is to be implemented as the radiating element for a patch antenna. The two-step reduced graphene oxide is prepared with graphite powder and is oxidized using the Tour’s method. The graphene oxide produced from this procedure is cleaned and neutralized before microwave irradiation procedure is carried out to begin the reduction process, by which oxygen containing functional groups are removed from the material. The second step of the reduction process consists of using the strongest hydrohalic acid, hydroiodic acid, to reduce graphene oxide in a reflux setup. The two-step reduced graphene oxide and its precursors are characterized using Field Emission Scanning Electron Microscopy (FESEM), Thermogravimetric analyzer (TGA), Ultraviolet-Visible Spectroscopy (UVVis), Fourier Transform Infrared Spectroscopy (FTIR), 4-Point Probe Conductivity Test, X-Ray Diffraction analyzer (XRD), and Energy Dispersive X-Ray analyzer (EDX). The results of the two-step reduction process yielded a reduced graphene oxide with a net conductivity measured at 4.8 x 102 Sm-1. The measured resistivity and electrical conductivity results were higher in the two-stepped method than any measurement yielded from its precursor materials. This thesis explains the effects that microwave irradiation and chemical reduction has on the degree of reduction and the overall structure of reduced graphene oxide. The two-step reduced graphene oxide was used as the radiating element in a microstrip patch antenna to determine the antenna performance in the microwave region. 2017 2023-03-06T02:02:18Z 2023-03-06T02:02:18Z Thesis http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77979 en Universiti Malaysia Perlis (UniMAP) Universiti Malaysia Perlis (UniMAP) School of Materials Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Graphene
Antennas, Horn
Antenna radiation patterns
Antennas (Electronics)
Graphene Oxide
spellingShingle Graphene
Antennas, Horn
Antenna radiation patterns
Antennas (Electronics)
Graphene Oxide
Mubaraq Hans, Von Schleusingen
Synthesis and characterization of a two-step reduced Graphene Oxide for antena applications in the microwave resime
description Master of Science in Materials Engineering
author2 Mohd Noor, Ahmad, Prof. Dr.
author_facet Mohd Noor, Ahmad, Prof. Dr.
Mubaraq Hans, Von Schleusingen
format Thesis
author Mubaraq Hans, Von Schleusingen
author_sort Mubaraq Hans, Von Schleusingen
title Synthesis and characterization of a two-step reduced Graphene Oxide for antena applications in the microwave resime
title_short Synthesis and characterization of a two-step reduced Graphene Oxide for antena applications in the microwave resime
title_full Synthesis and characterization of a two-step reduced Graphene Oxide for antena applications in the microwave resime
title_fullStr Synthesis and characterization of a two-step reduced Graphene Oxide for antena applications in the microwave resime
title_full_unstemmed Synthesis and characterization of a two-step reduced Graphene Oxide for antena applications in the microwave resime
title_sort synthesis and characterization of a two-step reduced graphene oxide for antena applications in the microwave resime
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2017
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77979
_version_ 1772813066780540928
score 13.211869

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