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Salama RS, Gouda MS, Aboud MFA, Alshorifi FT, El-Hallag AA, Badawi AK. Synthesis and characterization of magnesium ferrite-activated carbon composites derived from orange peels for enhanced supercapacitor performance. Sci Rep 2024; 14:8223. [PMID: 38589386 PMCID: PMC11001879 DOI: 10.1038/s41598-024-54942-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 02/19/2024] [Indexed: 04/10/2024] Open
Abstract
Supercapacitors have emerged as highly efficient energy storage devices, relying on electrochemical processes. The performance of these devices can be influenced by several factors, with key considerations including the selection of electrode materials and the type of electrolyte utilized. Transition metal oxide electrodes are commonly used in supercapacitors, as they greatly influence the electrochemical performance of these devices. Nonetheless, ferrites' low energy density poses a limitation. Hence, it is crucial to create electrode materials featuring unique and distinct structures, while also exploring the ideal electrolyte types, to enhance the electrochemical performance of supercapacitors incorporating magnesium ferrites (MF). In this study, we effectively prepared magnesium ferrites (MgFe2O4) supported on activated carbon (AC) derived from orange peels (OP) using a simple hydrothermal method. The resulting blends underwent comprehensive characterization employing various methods, including FTIR, XRD, TEM, SEM, EDX, and mapping analysis. Moreover, the electrochemical performance of MgFe2O4@AC composites was evaluated using GCD and CV techniques. Remarkably, the MF45-AC electrode material showed exceptional electrochemical behavior, demonstrating a specific capacitance of 870 F·g-1 within current density of 1.0 A g-1 and potential windows spanning from 0 to 0.5 V. Additionally, the prepared electrodes displayed exceptional cycling stability, with AC, MF, and MF45-AC retaining 89.6%, 94.2%, and 95.1% of their initial specific capacitance, respectively, even after 5000 cycles. These findings underscore the potential of MF-AC composites as superior electrode materials for supercapacitors. The development of such composites, combined with tailored electrolyte concentrations, holds significant promise for advancing the electrochemical performance and energy density of supercapacitor devices.
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Affiliation(s)
- Reda S Salama
- Basic Science Department, Faculty of Engineering, Delta University for Science and Technology, Gamasa, Egypt.
| | - Mostafa S Gouda
- Basic Science Department, Faculty of Engineering, Delta University for Science and Technology, Gamasa, Egypt
| | - Mohamed F Aly Aboud
- Department of Mechanical Engineering, Faculty of Engineering, Islamic University of Madinah, P.O.B. 170, 42351, Madinah, Saudi Arabia.
| | - Fares T Alshorifi
- Department of Chemistry, Faculty of Science, University of Saba Region, Marib, Yemen.
- Department of Chemistry, Faculty of Science, Sana'a University, Sana'a, Yemen.
| | - A A El-Hallag
- Basic Science Department, Faculty of Engineering, Delta University for Science and Technology, Gamasa, Egypt
| | - Ahmad K Badawi
- Civil Engineering Department, El-Madina Higher Institute for Engineering and Technology, Giza, 12588, Egypt
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Scarcello A, Alessandro F, Cruz Salazar Y, Arias Polanco M, Vacacela Gomez C, Tene T, Guevara M, Bellucci S, Straface S, Caputi LS. Stable Supercapacitors Based on Activated Carbon Prepared from Italian Orange Juice. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 14:71. [PMID: 38202526 PMCID: PMC10780622 DOI: 10.3390/nano14010071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 12/23/2023] [Accepted: 12/25/2023] [Indexed: 01/12/2024]
Abstract
The development of efficient energy storage systems is critical in the transition towards sustainable energy solutions. In this context, the present work investigates the viability of using orange juice, as a promising and sustainable precursor, for the synthesis of activated carbon electrodes for supercapacitor technologies. Through the carbonization-activation process and controlling the preparation parameters (KOH ratio and activation time), we have tailored the specific surface area (SSA) and pore size distribution (PSD) of the resulting carbon materials-crucial parameters that support supercapacitive performance. Several spectroscopic, morphological, and electrochemical techniques are used to characterize the obtained carbon materials. In particular, our optimization efforts revealed that a 5:1 KOH ratio with an activation time up to 120 min produced the highest SSA of about 2203 m2/g. Employing these optimal conditions, we fabricated symmetric coin cell supercapacitors using Na2SO4 as the electrolyte, which exhibited interesting specific capacitance (~56 F/g). Durability testing over 5000 cycles sustained the durability of the as-made activated carbon electrodes, suggesting an excellent retention of specific capacitance. This study not only advances the field of energy storage by introducing a renewable material for electrode fabrication but also contributes to the broader goal of waste reduction through the repurposing of food byproducts.
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Affiliation(s)
- Andrea Scarcello
- Surface Nanoscience Group, Department of Physics, University of Calabria, 87036 Rende, Italy
- UNICARIBE Research Center, University of Calabria, 87036 Rende, Italy
| | - Francesca Alessandro
- Institute on Membrane Technology, National Research Council of Italy (CNR-ITM), Via P. Bucci 17/C, 87036 Rende, Italy
| | - Yolenny Cruz Salazar
- Surface Nanoscience Group, Department of Physics, University of Calabria, 87036 Rende, Italy
- UNICARIBE Research Center, University of Calabria, 87036 Rende, Italy
| | - Melvin Arias Polanco
- UNICARIBE Research Center, University of Calabria, 87036 Rende, Italy
- Laboratorio de Nanotecnología, Area de Ciencias Básicas y Ambientales, Instituto Tecnológico de Santo Domingo, Av. Los Próceres, Santo Domingo 10602, Dominican Republic
| | - Cristian Vacacela Gomez
- UNICARIBE Research Center, University of Calabria, 87036 Rende, Italy
- INFN-Laboratori Nazionali di Frascati, 00044 Frascati, Italy;
| | - Talia Tene
- UNICARIBE Research Center, University of Calabria, 87036 Rende, Italy
- Department of Chemistry, Universidad Tecnica Particular de Loja, Loja 110160, Ecuador
| | - Marco Guevara
- Faculty of Mechanical Engineering, Escuela Superior Politécnica de Chimborazo (ESPOCH), Riobamba 060155, Ecuador
| | | | - Salvatore Straface
- Department of Environmental Engineering (DIAm), University of Calabria, Via P. Bucci, Cubo 42B, 87036 Rende, Italy
| | - Lorenzo S. Caputi
- Surface Nanoscience Group, Department of Physics, University of Calabria, 87036 Rende, Italy
- UNICARIBE Research Center, University of Calabria, 87036 Rende, Italy
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