Influence of reduction duration on reduced graphene oxide for supercapacitor energy storage enhancement
Reduced graphene oxide (rGO) has attracted significant attention in carbon-based energy storage devices due to its promising electrochemical properties. The performance of reduced graphene oxide (rGO) in supercapacitor energy storage devices is remarkably influenced by the duration of its reduction...
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Elsevier
2025-04-01
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| Series: | Carbon Trends |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667056925000495 |
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| author | Sanjeev Gautam Jaswinder Singh Sidhu Monika Verma |
| author_facet | Sanjeev Gautam Jaswinder Singh Sidhu Monika Verma |
| author_sort | Sanjeev Gautam |
| collection | DOAJ |
| description | Reduced graphene oxide (rGO) has attracted significant attention in carbon-based energy storage devices due to its promising electrochemical properties. The performance of reduced graphene oxide (rGO) in supercapacitor energy storage devices is remarkably influenced by the duration of its reduction process. In this study, graphene oxide (GO) synthesized via a modified Hummer’s method and systematically reduced over varying durations to investigate the impact of reduction time on the structural and electrochemical properties of rGO. The reduction process was monitored using ex-situ X-ray diffraction (XRD), Raman spectroscopy, and High-resolution Transmission Electron Microscopy (HR-TEM) to gain detailed insights into the evolution of rGO over time. Structural analyses employing XRD, Fourier-transform infrared spectroscopy (FTIR), and Raman spectroscopy revealed that prolonged reduction led to increase crystallite size, decrease interlayer spacing, and reduced defect densities. Cyclic voltammetry measurements demonstrated a direct correlation between reduction duration and specific capacitance, with longer reduction times enhancing the energy storage performance of rGO. These findings, including Electrochemical Impedance Spectroscopy (EIS), underscore the critical influence of reduction duration on optimizing rGO for supercapacitor applications. |
| format | Article |
| id | doaj-art-cad3e5b5fdf24b26b4085c1b014a22e8 |
| institution | OA Journals |
| issn | 2667-0569 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Elsevier |
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| series | Carbon Trends |
| spelling | doaj-art-cad3e5b5fdf24b26b4085c1b014a22e82025-08-20T02:24:46ZengElsevierCarbon Trends2667-05692025-04-011910049910.1016/j.cartre.2025.100499Influence of reduction duration on reduced graphene oxide for supercapacitor energy storage enhancementSanjeev Gautam0Jaswinder Singh Sidhu1Monika Verma2Advanced Functional Materials Lab., Department of Chemical Engineering & Technology, Panjab University, Chandigarh, 160014, India; Corresponding author.Advanced Functional Materials Lab., Department of Chemical Engineering & Technology, Panjab University, Chandigarh, 160014, India; Department of Physics, Panjab University, Chandigarh, 160014, IndiaAdvanced Functional Materials Lab., Department of Chemical Engineering & Technology, Panjab University, Chandigarh, 160014, India; Energy Research Centre, Panjab University, Chandigarh, 160014, IndiaReduced graphene oxide (rGO) has attracted significant attention in carbon-based energy storage devices due to its promising electrochemical properties. The performance of reduced graphene oxide (rGO) in supercapacitor energy storage devices is remarkably influenced by the duration of its reduction process. In this study, graphene oxide (GO) synthesized via a modified Hummer’s method and systematically reduced over varying durations to investigate the impact of reduction time on the structural and electrochemical properties of rGO. The reduction process was monitored using ex-situ X-ray diffraction (XRD), Raman spectroscopy, and High-resolution Transmission Electron Microscopy (HR-TEM) to gain detailed insights into the evolution of rGO over time. Structural analyses employing XRD, Fourier-transform infrared spectroscopy (FTIR), and Raman spectroscopy revealed that prolonged reduction led to increase crystallite size, decrease interlayer spacing, and reduced defect densities. Cyclic voltammetry measurements demonstrated a direct correlation between reduction duration and specific capacitance, with longer reduction times enhancing the energy storage performance of rGO. These findings, including Electrochemical Impedance Spectroscopy (EIS), underscore the critical influence of reduction duration on optimizing rGO for supercapacitor applications.http://www.sciencedirect.com/science/article/pii/S2667056925000495Graphene oxideHR-TEMEnergy storageRaman analysisElectrochemical analysis |
| spellingShingle | Sanjeev Gautam Jaswinder Singh Sidhu Monika Verma Influence of reduction duration on reduced graphene oxide for supercapacitor energy storage enhancement Carbon Trends Graphene oxide HR-TEM Energy storage Raman analysis Electrochemical analysis |
| title | Influence of reduction duration on reduced graphene oxide for supercapacitor energy storage enhancement |
| title_full | Influence of reduction duration on reduced graphene oxide for supercapacitor energy storage enhancement |
| title_fullStr | Influence of reduction duration on reduced graphene oxide for supercapacitor energy storage enhancement |
| title_full_unstemmed | Influence of reduction duration on reduced graphene oxide for supercapacitor energy storage enhancement |
| title_short | Influence of reduction duration on reduced graphene oxide for supercapacitor energy storage enhancement |
| title_sort | influence of reduction duration on reduced graphene oxide for supercapacitor energy storage enhancement |
| topic | Graphene oxide HR-TEM Energy storage Raman analysis Electrochemical analysis |
| url | http://www.sciencedirect.com/science/article/pii/S2667056925000495 |
| work_keys_str_mv | AT sanjeevgautam influenceofreductiondurationonreducedgrapheneoxideforsupercapacitorenergystorageenhancement AT jaswindersinghsidhu influenceofreductiondurationonreducedgrapheneoxideforsupercapacitorenergystorageenhancement AT monikaverma influenceofreductiondurationonreducedgrapheneoxideforsupercapacitorenergystorageenhancement |