Scholarlink

<p>In this article, MnO<sub>2</sub> and carbon based composite nanomaterials are synthesized and characterized for asymmetrical supercapacitor electrodes. Individual and composite materials were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and Galvanostatic charge-discharge (GCD). XRD, SEM and FTIR confirmed the structure, surface morphology and functional bonds present, respectively. Cyclic voltammetry confirmed the active redox reaction and specific values of anodic and cathodic currents. Carbon based MnO<sub>2</sub> composites produced a high specific capacitance of 143&#xa0;F/g at 0.3&#xa0;A/g with a specific power of 70&#xa0;W/kg and EIS successfully confirmed the capacitive behavior of composite materials. The findings of the current research endeavor hold significant implications for the advancement of high-performance supercapacitor devices.</p>

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

Electrochemical and impedance analysis of carbon based MnO2 composite nanomaterials for supercapacitor electrodes

  • 期刊论文

  • 发表日期：

    2025年8月8日

查看全文
  • Maria Aziz,
  • Bushra Parveen,
  • Muhammad Shahid Khan,
  • Nadir Ali Khan

摘要

In this article, MnO2 and carbon based composite nanomaterials are synthesized and characterized for asymmetrical supercapacitor electrodes. Individual and composite materials were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and Galvanostatic charge-discharge (GCD). XRD, SEM and FTIR confirmed the structure, surface morphology and functional bonds present, respectively. Cyclic voltammetry confirmed the active redox reaction and specific values of anodic and cathodic currents. Carbon based MnO2 composites produced a high specific capacitance of 143 F/g at 0.3 A/g with a specific power of 70 W/kg and EIS successfully confirmed the capacitive behavior of composite materials. The findings of the current research endeavor hold significant implications for the advancement of high-performance supercapacitor devices.