MARC details
| 000 -LEADER |
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03443ntm a2200373 i 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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MY-KuUP |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20251125105750.0 |
| 006 - FIXED-LENGTH DATA ELEMENTS--ADDITIONAL MATERIAL CHARACTERISTICS |
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t||||fr|||| 000 0 |
| 007 - PHYSICAL DESCRIPTION FIXED FIELD--GENERAL INFORMATION |
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ta |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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201023t2 2 m a|||fram|| 000 0 eng d |
| 020 ## - INTERNATIONAL STANDARD BOOK NUMBER |
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| International Standard Book Number |
THE0008932(Local) |
| Qualifying information |
hardback |
| 040 ## - CATALOGING SOURCE |
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| Original cataloging agency |
UMP |
| Language of cataloging |
eng |
| Transcribing agency |
UMP |
| Description conventions |
rda |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) |
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| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
FSTI .L56 2019 r Thesis |
| 100 1# - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Lim, Wan Sin, |
| Relator term |
author. |
| 245 10 - TITLE STATEMENT |
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| Title |
Effect of sulphuric acid concentration of hummers’ method in reduced graphene oxide synthesis and its electrochemical study / |
| Statement of responsibility, etc. |
Lim Wan Sin |
| 264 #1 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE |
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| Place of production, publication, distribution, manufacture |
Kuantan, Pahang : |
| Name of producer, publisher, distributor, manufacturer |
UMP, |
| Date of production, publication, distribution, manufacture, or copyright notice |
2019 |
| 264 #4 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE |
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| Date of production, publication, distribution, manufacture, or copyright notice |
© 2019 |
| 300 ## - PHYSICAL DESCRIPTION |
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| Extent |
xv, 80 pages : |
| Other physical details |
illustrations (some color) ; |
| Dimensions |
30 cm. + |
| Accompanying material |
1 CD-ROM |
| 336 ## - CONTENT TYPE |
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| Content type term |
text |
| Source |
rdacontent |
| 336 ## - CONTENT TYPE |
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| Content type term |
text |
| Source |
rdacontent |
| 337 ## - MEDIA TYPE |
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| Media type term |
unmediated |
| Source |
rdamedia |
| 337 ## - MEDIA TYPE |
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| Media type term |
computer |
| Source |
rdamedia |
| 338 ## - CARRIER TYPE |
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| Carrier type term |
volume |
| Source |
rdacarrier |
| 338 ## - CARRIER TYPE |
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| Carrier type term |
computer disc |
| Source |
rdacarrier |
| 347 ## - DIGITAL FILE CHARACTERISTICS |
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| File type |
text file |
| Encoding format |
PDF |
| Source |
rda |
| 500 ## - GENERAL NOTE |
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| General note |
Faculty of Industrial Sciences and Technology |
| 502 ## - DISSERTATION NOTE |
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| Dissertation note |
Thesis (Master of Science) -- Universiti Malaysia Pahang – 2019 |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE |
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| Bibliography, etc. note |
Includes bibliographical references |
| 520 3# - SUMMARY, ETC. |
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| Summary, etc. |
Sulphuric acid is an intercalation agent that commonly utilized during the chemical oxidation process in the modified Hummers’ method. The presence of sulphuric acid serves as intercalated molecules that significant to enhance the reactive of graphite surface for further oxidation. The aims of the study are to prepare graphene oxide (GO) through modification of the Hummers’ method by controlling the sulphuric acid concentration during the first step of oxidation and determine the electrochemical performance of the reduced graphene oxide (rGO). Ultraviolet-visible spectroscopy (UV-Vis), Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Diffraction (XRD), X-Ray Photoelectron Spectroscopy (XPS) and Field Emission Scanning Electron Microscope (FESEM) were used to characterize the composition and morphology of GO samples. After reduction by hydrazine monohydrate, rGO was characterized using XPS and Brunauer-Emmett-Teller (BET) surface area analysis. Then the electrochemical studies of rGO have been evaluated using cyclic voltammetry (CV), galvanostatic charge-discharge (GCD) and electrochemical impedance spectroscopy (EIS) using the three-electrode system. Based on XPS results, it was found that in the case of 98 % (GO98) and 90 % (GO90), the edge oxidized GO was dominant. After reduced the edge oxidized GO (rGO98 and rGO90) reached the specific capacitance 160 and 185 F g-1 at current density 0.5 A g-1. With the further reduction of the sulphuric acid concentration to 80 % (GO80) and 70 % (GO70), basal oxidized GO was obtained. However, the specific capacitance reduced to 146 and 120 F g-1. The EIS revealed that rGO90 has higher electron mobility and lower resistance than rGO98, rGO80 and rGO70. The stability of rGO90 after 10000 cycles showed 94 % capacitance retention which is higher than rGO98, rGO80, and rGO70 with capacitance retention 86, 85, and 80 %, respectively. Hence, it demonstrated that sulphuric acid concentration significantly influences on oxygen oxidized location either edge or basal plane during GO formation and also its electrochemical performance after reduction. |
| 610 20 - SUBJECT ADDED ENTRY--CORPORATE NAME |
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| Corporate name or jurisdiction name as entry element |
Faculty of Industrial Sciences and Technology |
| General subdivision |
Dissertations |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Universities and colleges |
| General subdivision |
Dissertations |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Theses |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
Library of Congress Classification |
| Koha item type |
Restricted Collection |