Scholarlink

<p>This study presents a sustainable and low-cost approach for fabricating micro-supercapacitors using a carbon electrode material derived from plant waste, an abundant and renewable resource. <i>Curcuma longa</i> (turmeric), <i>Carica papaya</i> (papaya), <i>Musa acuminata</i> (banana), and <i>Macaranga peltata</i> (macaranga) leaves were collected, carbonized, and evaluated for their electrochemical performance to determine the optimal carbonization temperature and specific capacitance of the bio-derived carbon. Among these, <i>Curcuma longa</i> leaves required the lowest carbonization temperature and exhibited the highest specific capacitance. Consequently, it was selected for further activation to enhance performance. Interdigital micro-supercapacitors were fabricated on a paper substrate using a stencil-assisted method with the biomass-derived carbon electrode material. The supercapacitor demonstrated an excellent specific capacitance of 64.15 mF/cm<sup>2</sup> at 0.25&#xa0;mA/cm<sup>2</sup> and a cyclic stability of 98.3%. The use of a paper substrate contributes to reduced device weight and improved environmental sustainability due to its biodegradability and low fabrication cost. The flexible, thin design also enables seamless integration into space-constrained and mechanically dynamic applications, such as smart textiles, on-chip devices, and compact IoT components.</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

Paper-based flexible micro-supercapacitors with bio-derived carbon electrodes for sustainable energy storage applications

  • 期刊论文

  • 发表日期：

    2026年5月4日

查看全文
  • G. S. Sangeetha Gopan,
  • R. Sreehari,
  • R. S. Harikrishnan,
  • Nelsa Abraham,
  • L. V. Anitha Rani,
  • S. Rani

摘要

This study presents a sustainable and low-cost approach for fabricating micro-supercapacitors using a carbon electrode material derived from plant waste, an abundant and renewable resource. Curcuma longa (turmeric), Carica papaya (papaya), Musa acuminata (banana), and Macaranga peltata (macaranga) leaves were collected, carbonized, and evaluated for their electrochemical performance to determine the optimal carbonization temperature and specific capacitance of the bio-derived carbon. Among these, Curcuma longa leaves required the lowest carbonization temperature and exhibited the highest specific capacitance. Consequently, it was selected for further activation to enhance performance. Interdigital micro-supercapacitors were fabricated on a paper substrate using a stencil-assisted method with the biomass-derived carbon electrode material. The supercapacitor demonstrated an excellent specific capacitance of 64.15 mF/cm2 at 0.25 mA/cm2 and a cyclic stability of 98.3%. The use of a paper substrate contributes to reduced device weight and improved environmental sustainability due to its biodegradability and low fabrication cost. The flexible, thin design also enables seamless integration into space-constrained and mechanically dynamic applications, such as smart textiles, on-chip devices, and compact IoT components.