Scholarlink

In the current study, we embarked on the synthesis of graphite oxide (GO) utilizing the modified Hummers method, followed by its reduction to reduced graphene oxide (rGO) employing the microwave irradiation method. The successful validation of rGO was achieved through meticulous examination via XRD, FTIR, and FESEM techniques. Subsequently, the electrochemical performance of microwave-irradiated rGO (MW-rGO) was scrutinized across various molar concentrations of Potassium Hydroxide (KOH) at 1 M, 3 M, 6 M, and 9 M as electrolytes. Interestingly, we found that MW-rGO performed best when the concentration of Potassium Hydroxide (KOH) was 6 M, with a specific capacitance of 46.4 F/g from CV at 5mVs−1 and 20 F/g from GCD at 0.28 A/g current density, and energy and power densities of 1.8 Wh/g and 1142.8 W/kg, respectively. These findings highlight the role of electrolyte concentration and the promising suitability of MW-rGO for advanced energy storage applications such as supercapacitors.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Synthesis and Electrochemical Performance of Microwave-Assisted Reduced Graphene Oxide at Different Concentrations of KOH

  • 会议论文

  • 发表日期：

    2025年

查看全文
  • Ritesh Kumar,
  • Diksha S. Kalia,
  • R. K. Singh,
  • A. L. Sharma

摘要

In the current study, we embarked on the synthesis of graphite oxide (GO) utilizing the modified Hummers method, followed by its reduction to reduced graphene oxide (rGO) employing the microwave irradiation method. The successful validation of rGO was achieved through meticulous examination via XRD, FTIR, and FESEM techniques. Subsequently, the electrochemical performance of microwave-irradiated rGO (MW-rGO) was scrutinized across various molar concentrations of Potassium Hydroxide (KOH) at 1 M, 3 M, 6 M, and 9 M as electrolytes. Interestingly, we found that MW-rGO performed best when the concentration of Potassium Hydroxide (KOH) was 6 M, with a specific capacitance of 46.4 F/g from CV at 5mVs−1 and 20 F/g from GCD at 0.28 A/g current density, and energy and power densities of 1.8 Wh/g and 1142.8 W/kg, respectively. These findings highlight the role of electrolyte concentration and the promising suitability of MW-rGO for advanced energy storage applications such as supercapacitors.