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<p>Recognizing the urgent need for sustainable, high-performance energy storage solutions, the present work demonstrates a straightforward method for preparing raw chicken feather fiber charcoal (CFC) from waste chicken feathers in seal tight reactor within 2&#xa0;h. Using a simple physical activation process, the CFC has been activated with NaOH at 500&#xa0;°C to produce its activated carbon (CFAC). This same method has been utilized to create heteroatom (CuO)-decorated nanocomposites (CCF NCs) by combining CFC with copper acetate monohydrate (Cu (CO<sub>2</sub>CH<sub>3</sub>)<sub>2</sub>·H<sub>2</sub>O) at 500&#xa0;°C. The synthesized CFC, CFAC, and CCF NCs have been then tested as electrode materials for symmetrical supercapacitors (SSCs) using 6&#xa0;M KOH as the electrolyte. According to the electrochemical investigation, CCF NCs performed better than other electrode materials, with a specific capacitance of 232.7&#xa0;F/g at a scan rate of 10 mV s<sup>− 1</sup> and 201.17&#xa0;F/g at a current density of 3&#xa0;A/g. Additionally, extensive cycling testing at 100 mV s-1 revealed a power density of 2549.68&#xa0;W kg-1, an energy density of 80.74&#xa0;W h kg-1, and an outstanding retention of 93% after 2000 cycles. It’s interesting to note that this method offers a simple and effective means to create huge amounts of activated carbon and nanocomposites, which significantly enhances the electrochemical performance of SSCs. </p> Graphical Abstract <p></p>

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Simple physical activation of chicken feather-derived carbon-CuO nanocomposites for symmetrical supercapacitor electrode

  • 期刊论文

  • 发表日期：

    2026年1月23日

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  • Vanshika Gairola,
  • Ayush Negi,
  • Sarihsh Sati,
  • Bhupendra Rawat,
  • Kamal K. Kar,
  • Pankaj Chamoli

摘要

Recognizing the urgent need for sustainable, high-performance energy storage solutions, the present work demonstrates a straightforward method for preparing raw chicken feather fiber charcoal (CFC) from waste chicken feathers in seal tight reactor within 2 h. Using a simple physical activation process, the CFC has been activated with NaOH at 500 °C to produce its activated carbon (CFAC). This same method has been utilized to create heteroatom (CuO)-decorated nanocomposites (CCF NCs) by combining CFC with copper acetate monohydrate (Cu (CO2CH3)2·H2O) at 500 °C. The synthesized CFC, CFAC, and CCF NCs have been then tested as electrode materials for symmetrical supercapacitors (SSCs) using 6 M KOH as the electrolyte. According to the electrochemical investigation, CCF NCs performed better than other electrode materials, with a specific capacitance of 232.7 F/g at a scan rate of 10 mV s− 1 and 201.17 F/g at a current density of 3 A/g. Additionally, extensive cycling testing at 100 mV s-1 revealed a power density of 2549.68 W kg-1, an energy density of 80.74 W h kg-1, and an outstanding retention of 93% after 2000 cycles. It’s interesting to note that this method offers a simple and effective means to create huge amounts of activated carbon and nanocomposites, which significantly enhances the electrochemical performance of SSCs.

Graphical Abstract