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Recycle And Synthesis Green Reduce Graphene Oxide From Spent Battery

One atom thick, two-dimensional carbon materials graphene have unique properties which includes ultrahigh carrier mobility, large surface area and others. Due to its unique properties, it become a rising star in the field of technological application such as supercapacitors, batteries, flexible an...

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Main Author: Lee, See Kay
Format: Monograph
Language:English
Published: Universiti Sains Malaysia 2022
Subjects:
T Technology
TN Mining Engineering. Metallurgy
Online Access:http://eprints.usm.my/56590/1/Recycle%20And%20Synthesis%20Green%20Reduce%20Graphene%20Oxide%20From%20Spent%20Battery_Lee%20See%20Kay.pdf
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spelling my.usm.eprints.56590 http://eprints.usm.my/56590/ Recycle And Synthesis Green Reduce Graphene Oxide From Spent Battery Lee, See Kay T Technology TN Mining Engineering. Metallurgy One atom thick, two-dimensional carbon materials graphene have unique properties which includes ultrahigh carrier mobility, large surface area and others. Due to its unique properties, it become a rising star in the field of technological application such as supercapacitors, batteries, flexible and transparent conductors, fuel cells, solar cells, hydrogen storage, electrochemical sensors, and others. The objective of this work is to investigate the optimum voltage of electrochemical exfoliation to synthesis the best quality of reduced graphene oxide (rGO) from spent battery. An introduction to graphene and its derivatives and the concept of electrochemical exfoliation synthesis method has been discussed in this work. Further examination on physical properties such as structure, phase, chemical species, morphologies and its electrochemical properties characterized by using cyclic voltammetry (CV) and galvanostatic charge- discharge (GCD) have been described and presented. Electrochemical exfoliations were carried out at various voltage which are 4.0, 4.5, 5.0, 5.5 and 6.0 V. 4.5 V sample was selected to performed reduction treatment for further electrochemical properties characterization. The structural analysis confirmed that the existence of graphite and graphene oxide. The morphology and elemental analysis confirmed that loose, flexible and freely oriented graphene sheet layers existed and presence of oxygen containing functional group. Electrochemical characterization was performed for 4.5 V sample after reduction treatment. In cyclic voltammetry (CV), the rGO have the best performance at the optimum scan rate (10 mV s-1) where its specific capacitance is 80.40 Fg-1. In galvanostatic charge-discharge (GCD), increase in current densities results in lowest specific capacitance. Universiti Sains Malaysia 2022-08-13 Monograph NonPeerReviewed application/pdf en http://eprints.usm.my/56590/1/Recycle%20And%20Synthesis%20Green%20Reduce%20Graphene%20Oxide%20From%20Spent%20Battery_Lee%20See%20Kay.pdf Lee, See Kay (2022) Recycle And Synthesis Green Reduce Graphene Oxide From Spent Battery. Project Report. Universiti Sains Malaysia, Pusat Pengajian Kejuruteraan Bahan dan Sumber Mineral. (Submitted)
institution Universiti Sains Malaysia
building Hamzah Sendut Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Sains Malaysia
content_source USM Institutional Repository
url_provider http://eprints.usm.my/
language English
topic T Technology
TN Mining Engineering. Metallurgy
spellingShingle T Technology
TN Mining Engineering. Metallurgy
Lee, See Kay
Recycle And Synthesis Green Reduce Graphene Oxide From Spent Battery
description One atom thick, two-dimensional carbon materials graphene have unique properties which includes ultrahigh carrier mobility, large surface area and others. Due to its unique properties, it become a rising star in the field of technological application such as supercapacitors, batteries, flexible and transparent conductors, fuel cells, solar cells, hydrogen storage, electrochemical sensors, and others. The objective of this work is to investigate the optimum voltage of electrochemical exfoliation to synthesis the best quality of reduced graphene oxide (rGO) from spent battery. An introduction to graphene and its derivatives and the concept of electrochemical exfoliation synthesis method has been discussed in this work. Further examination on physical properties such as structure, phase, chemical species, morphologies and its electrochemical properties characterized by using cyclic voltammetry (CV) and galvanostatic charge- discharge (GCD) have been described and presented. Electrochemical exfoliations were carried out at various voltage which are 4.0, 4.5, 5.0, 5.5 and 6.0 V. 4.5 V sample was selected to performed reduction treatment for further electrochemical properties characterization. The structural analysis confirmed that the existence of graphite and graphene oxide. The morphology and elemental analysis confirmed that loose, flexible and freely oriented graphene sheet layers existed and presence of oxygen containing functional group. Electrochemical characterization was performed for 4.5 V sample after reduction treatment. In cyclic voltammetry (CV), the rGO have the best performance at the optimum scan rate (10 mV s-1) where its specific capacitance is 80.40 Fg-1. In galvanostatic charge-discharge (GCD), increase in current densities results in lowest specific capacitance.
format Monograph
author Lee, See Kay
author_facet Lee, See Kay
author_sort Lee, See Kay
title Recycle And Synthesis Green Reduce Graphene Oxide From Spent Battery
title_short Recycle And Synthesis Green Reduce Graphene Oxide From Spent Battery
title_full Recycle And Synthesis Green Reduce Graphene Oxide From Spent Battery
title_fullStr Recycle And Synthesis Green Reduce Graphene Oxide From Spent Battery
title_full_unstemmed Recycle And Synthesis Green Reduce Graphene Oxide From Spent Battery
title_sort recycle and synthesis green reduce graphene oxide from spent battery
publisher Universiti Sains Malaysia
publishDate 2022
url http://eprints.usm.my/56590/1/Recycle%20And%20Synthesis%20Green%20Reduce%20Graphene%20Oxide%20From%20Spent%20Battery_Lee%20See%20Kay.pdf
http://eprints.usm.my/56590/
_version_ 1756685082218725376
score 13.211869

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