Miyakoshi Rikuto, Hayashi Shuichiro, Terakawa Mitsuhiro
School of Integrated Design Engineering, Keio University Yokohama Kanagawa 223-8522 Japan
Department of Electronics and Electrical Engineering, Keio University Yokohama Kanagawa 223-8522 Japan.
RSC Adv. 2022 Oct 17;12(46):29647-29652. doi: 10.1039/d2ra05641k.
Utilizing renewable resources for electrodes realizes the sustainable fabrication of a supercapacitor with high environmental friendliness. Laser-based graphitization of biomass has been emerging as a promising technique for patterning the electrodes of a supercapacitor with renewable resources. Herein, simultaneous patterning and microstructuring of laser-induced graphene (LIG) on a renewable biomass resource, bamboo, by a laser-based graphitization technique was demonstrated. By irradiating femtosecond laser pulses onto bamboo, graphitization and microstructuring were both induced simultaneously, forming conductive structures with high surface area. Furthermore, LIG patterned on bamboo by our method was used as the electrodes of supercapacitors. NaCl was selected as the electrolyte for the fabrication of supercapacitors. The proposed method realizes the fabrication of environmentally-friendly supercapacitors comprised of all renewable biomass resources.
利用可再生资源作为电极可实现具有高度环境友好性的超级电容器的可持续制造。基于激光的生物质石墨化已成为一种有前景的技术，可用于用可再生资源对超级电容器的电极进行图案化。在此，展示了通过基于激光的石墨化技术在可再生生物质资源竹子上同时对激光诱导石墨烯（LIG）进行图案化和微结构化。通过将飞秒激光脉冲照射到竹子上，同时诱导了石墨化和微结构化，形成了具有高表面积的导电结构。此外，通过我们的方法在竹子上图案化得到的LIG被用作超级电容器的电极。选择NaCl作为制造超级电容器的电解质。所提出的方法实现了由所有可再生生物质资源组成的环境友好型超级电容器的制造。
