Synthesis, Characterization, and Electrochemical Analysis of Graphene Oxide Prepared by Modified Hummer’s Method
Abd El-Monem, M., Khairy, M., Mahmoud, K., Abdel‑Ghany, A., Ebnalwaled, A., Ibrahim, E. (2024). Synthesis, Characterization, and Electrochemical Analysis of Graphene Oxide Prepared by Modified Hummer’s Method. EKB Journal Management System, 9(2), 140-144. doi: 10.21608/sjsci.2024.240208.1133
Muhammad Abd El-Monem; Mohamed Khairy; Khaled G. Mahmoud; A. M. Abdel‑Ghany; A. A. Ebnalwaled; E. M. M. Ibrahim. "Synthesis, Characterization, and Electrochemical Analysis of Graphene Oxide Prepared by Modified Hummer’s Method". EKB Journal Management System, 9, 2, 2024, 140-144. doi: 10.21608/sjsci.2024.240208.1133
Abd El-Monem, M., Khairy, M., Mahmoud, K., Abdel‑Ghany, A., Ebnalwaled, A., Ibrahim, E. (2024). 'Synthesis, Characterization, and Electrochemical Analysis of Graphene Oxide Prepared by Modified Hummer’s Method', EKB Journal Management System, 9(2), pp. 140-144. doi: 10.21608/sjsci.2024.240208.1133
Abd El-Monem, M., Khairy, M., Mahmoud, K., Abdel‑Ghany, A., Ebnalwaled, A., Ibrahim, E. Synthesis, Characterization, and Electrochemical Analysis of Graphene Oxide Prepared by Modified Hummer’s Method. EKB Journal Management System, 2024; 9(2): 140-144. doi: 10.21608/sjsci.2024.240208.1133

Synthesis, Characterization, and Electrochemical Analysis of Graphene Oxide Prepared by Modified Hummer’s Method

Sohag Journal of Sciences
Volume 9, Issue 2, June 2024, Page 140-144  XML PDF (518.05 K)
Document Type: Regular Articles
DOI: 10.21608/sjsci.2024.240208.1133
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Authors
Muhammad Abd El-Monem email orcid 1; Mohamed Khairyorcid 2; Khaled G. Mahmoud2; A. M. Abdel‑Ghany1; A. A. Ebnalwaled3; E. M. M. Ibrahimorcid 4
1Basic Sciences Department, Faculty of Engineering, Sinai University, Egypt
2Chemistry Department, Faculty of Science, Sohag University, Sohag, 82524, Egypt
3Physics Department, Electronics and Nano Devices Lab, Faculty of Science, South Valley University, Qena 83523, Egypt
4Physics Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
Abstract
This work aims to explore the structural, morphological, and electrochemical features of graphene oxide. The study investigates graphene oxide's electrochemical behavior in supercapacitor applications. The graphene oxide was synthesized using the modified Hummer's method. XRD, Raman spectroscopy, and (HR-TEM) were used to investigate structural and morphological properties. The results confirmed the formation of the typical hexagonal structure of the graphene oxides. Raman spectrum showed two distinct G (primary mode of graphene) and D (defect or disorder mode) Raman modes at 1592 cm-1 and 1349 cm-1, respectively, in addition to D+D' and 2D modes. The electrochemical measurement revealed that the GO electrode has a specific capacitance of 38.33 F/g at a current density of 5 A/g in a 1 M KOH electrolyte with a very low charge transfer resistance of 0.97Ω. These findings suggested that this straightforward method can be used to create various graphene-derived electrodes for upgrading current supercapacitors.
Keywords
Graphene oxide; Graphene; supercapacitor; Hummer’s method; electrode material
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