Scholarlink

<p>This study investigates the performance of activated carbons derived from argan shells for supercapacitor electrodes using different activation agents: phosphoric acid (PA), zinc chloride (ZC), and sodium hydroxide (SH). Three activated carbons (labeled ACPA-E, ACZC-E, and ACSH-E) were synthesized through carbonization at 900&#xa0;℃ for 2&#xa0;h, followed by chemical activation. Scanning electron microscopy and BET analysis revealed variations in pore size distributions among the samples depending on the activating agent. Electrochemical performance of these activated carbon electrodes was assessed in 1-M H₂SO₄ using cyclic voltammetry, galvanostatic charge–discharge methods, and electrochemical impedance spectroscopy. The results demonstrated that ACPA-E exhibited the highest specific capacitance of 138.26 F/g, followed by ACZC-E at 122.21 F/g, and ACSH-E at 82.6 F/g. Among the activation agents, (PA) proved the most effective, suggesting that argan shell waste has significant potential for supercapacitor applications.</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

Supercapacitor performance of argan shell-based carbon electrodes: impact of chemical activation

  • 期刊论文

  • 发表日期：

    2025年9月9日

查看全文
  • Mohamed Ennabely,
  • Youssef Lghazi,
  • Boubaker Youbi,
  • Redouane EL Adnani,
  • Mounsif Ismail,
  • Abdessamad Ouedrhiri,
  • Mohammed Chafi,
  • Itto Bimaghra

摘要

This study investigates the performance of activated carbons derived from argan shells for supercapacitor electrodes using different activation agents: phosphoric acid (PA), zinc chloride (ZC), and sodium hydroxide (SH). Three activated carbons (labeled ACPA-E, ACZC-E, and ACSH-E) were synthesized through carbonization at 900 ℃ for 2 h, followed by chemical activation. Scanning electron microscopy and BET analysis revealed variations in pore size distributions among the samples depending on the activating agent. Electrochemical performance of these activated carbon electrodes was assessed in 1-M H₂SO₄ using cyclic voltammetry, galvanostatic charge–discharge methods, and electrochemical impedance spectroscopy. The results demonstrated that ACPA-E exhibited the highest specific capacitance of 138.26 F/g, followed by ACZC-E at 122.21 F/g, and ACSH-E at 82.6 F/g. Among the activation agents, (PA) proved the most effective, suggesting that argan shell waste has significant potential for supercapacitor applications.