Scholarlink

<p>Electrochemical capacitors predominantly rely on porous carbon materials with high specific surface areas; however, precise control over pore size distribution remains a critical challenge in optimizing electrode performance. In this study, we present a two-step activation strategy for fabricating hierarchical porous carbon derived from Monoon longifolium seed biomass (HPC-MS), which enables systematic tuning of the pore architecture. The optimized carbon material demonstrated a high specific surface area of 898&#xa0;m² g⁻¹ with well-developed hierarchical porosity. When evaluated in a two-electrode symmetric configuration, the HPC-MS electrode delivered an impressive specific capacitance of 368&#xa0;F g⁻¹ at a current density of 1&#xa0;A g⁻¹, along with outstanding cycling stability, retaining 97.2% of its capacitance after 5000 charge–discharge cycles. These results demonstrate the potential of waste biomass as a sustainable carbon source and provide a promising pathway for developing high-performance supercapacitors through rational pore structure engineering.</p> Graphical abstract <p></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

Hierarchical porous carbon derived from Monoon longifolium seeds as high-performance supercapacitor electrodes

  • 期刊论文

  • 发表日期：

    2026年5月8日

查看全文
  • Ariharan Arjunan,
  • Sivaprakasam Radhakrishnan,
  • Sung-Kon Kim

摘要

Electrochemical capacitors predominantly rely on porous carbon materials with high specific surface areas; however, precise control over pore size distribution remains a critical challenge in optimizing electrode performance. In this study, we present a two-step activation strategy for fabricating hierarchical porous carbon derived from Monoon longifolium seed biomass (HPC-MS), which enables systematic tuning of the pore architecture. The optimized carbon material demonstrated a high specific surface area of 898 m² g⁻¹ with well-developed hierarchical porosity. When evaluated in a two-electrode symmetric configuration, the HPC-MS electrode delivered an impressive specific capacitance of 368 F g⁻¹ at a current density of 1 A g⁻¹, along with outstanding cycling stability, retaining 97.2% of its capacitance after 5000 charge–discharge cycles. These results demonstrate the potential of waste biomass as a sustainable carbon source and provide a promising pathway for developing high-performance supercapacitors through rational pore structure engineering.

Graphical abstract