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Simultaneous laser-based graphitization and microstructuring of bamboo for supercapacitors derived from renewable

Rikuto Miyakoshi1, Shuichiro Hayashi1, Mitsuhiro Terakawa1,2

  • 1School of Integrated Design Engineering, Keio University Yokohama Kanagawa 223-8522 Japan terakawa@elec.keio.ac.jp.

RSC Advances
|November 2, 2022
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Summary

Sustainable supercapacitors were fabricated using laser-induced graphene from renewable bamboo. This eco-friendly method creates high-surface-area electrodes from biomass, paving the way for greener energy storage solutions.

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Area of Science:

  • Materials Science
  • Renewable Energy Storage
  • Biomass Conversion

Background:

  • Supercapacitors require sustainable electrode materials for environmental friendliness.
  • Laser-based graphitization of biomass is a promising technique for renewable electrode fabrication.

Purpose of the Study:

  • To demonstrate simultaneous patterning and microstructuring of laser-induced graphene (LIG) on bamboo.
  • To fabricate environmentally-friendly supercapacitors using biomass-derived electrodes.

Main Methods:

  • Irradiating bamboo with femtosecond laser pulses to induce graphitization and microstructuring.
  • Utilizing the resulting laser-induced graphene (LIG) as supercapacitor electrodes.
  • Employing NaCl as the electrolyte for supercapacitor fabrication.

Main Results:

  • Simultaneous graphitization and microstructuring of bamboo were achieved.
  • Conductive structures with high surface area were formed.
  • Environmentally-friendly supercapacitors were successfully fabricated using all renewable biomass resources.

Conclusions:

  • Laser-induced graphene from bamboo offers a sustainable route for supercapacitor electrodes.
  • This method enables the creation of high-performance, eco-friendly energy storage devices.
  • The research highlights the potential of biomass conversion for sustainable electronics.