| Integrated Electrochemical and Hydrothermal Strategies for the Controlled Synthesis of V₂O₅@rGO Nanocomposite as Supercapacitor Electrode |
| کد مقاله : 1113-ICOC |
| نویسندگان |
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سید حبیب اله کاظمی *1، اسماعیل سنجری2 1تحصیلات تکمیلی علوم پایه زنجان -دانشکده شیمی 2دانشگاه تحصیلات تکمیلی علوم پایه زنجان- دانشکده شیمی |
| چکیده مقاله |
| As a prominent class of energy-storage devices, supercapacitors have garnered significant attention because of their capability to deliver exceptionally high-power densities and remarkable cyclability compared to conventional batteries. Their overall performance is critically governed by the intrinsic properties and structural features of the electrode materials. Traditionally, carbonaceous materials and transition-metal oxides have served as the primary electrode materials; but, the relatively low capacity of carbon-based electrodes and the limited electrical conductivity of many metal oxides limit their application in advanced supercapacitor systems. To alleviate these limitations, hybrid architectures that integrated carbon frameworks with metal oxides have emerged as an effective design approach [1-2]. In this work, and based on previous investigations in our research group, a V₂O₅@rGO/NF nanocomposite was fabricated through a combination of hydrothermal and electrochemical synthesis procedure. The structural and chemical characteristics of the resulting material were evaluated using electron microscopy, different spectroscopy methods including X-ray diffraction, and thermal analysis. Furthermore, the electrochemical properties of the electrode were examined by cyclic voltammetry, galvanostatic charge–discharge, and electrochemical impedance spectroscopy. The V₂O₅@rGO/NF electrode showed an impressive specific capacitance of approximately 726 F g⁻¹ at 5 mV s⁻¹, along with excellent long-term stability, nearly 83% of its capacitance over 10,000 cycles. These findings highlight the importance of combined synthetic approaches for engineering advanced hybrid electrode materials for next-generation supercapacitors [3]. |
| کلیدواژه ها |
| Supercapacitor, Hydrothermal, Nanocomposite, Vanadium oxide |
| وضعیت: پذیرفته شده |