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<p>Alternative binders that can be processed in water are still in the early stages of development for more efficient and sustainable supercapacitors . However, their electrochemical performance is still below average. This study uses heat-moisture-treated starch (starch HMT) as a binder for reduced graphene oxide (rGO) supercapacitors. Starch HMT has been fabricated at 120&#xa0;°C. The XRD diffractogram exhibits peaks at 2θ angles of 15°, 17°, 22°, and 24°. The 2θ values indicate that potato starch is of type B. FTIR spectra show the formation of OH, C–O–C, C-O, C–O–C, and C-H bonds. SEM images show cracks in the morphology. Electrochemical testing shows a specific capacity of 230 F/g at a current density of 1 A/g. The charge–discharge stability of the electrodes at 5000 cycles is 90%. These results offer a framework for developing electrode materials and binders for supercapacitors.</p>

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Improving the hydrothermal reduced graphene oxide supercapacitor with heat-moisture-treated potato starch as binder

  • 期刊论文

  • 发表日期：

    2026年1月6日

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  • Amru Daulay,
  • Yassaroh Yassaroh,
  • Lukmanul Hakim Samada,
  • M. Hanif Amrulloh,
  • Cavit Kumaş,
  • Mentari Kirana Nariswari,
  • Devi Mariska Putri,
  • Yugo Chambioso

摘要

Alternative binders that can be processed in water are still in the early stages of development for more efficient and sustainable supercapacitors . However, their electrochemical performance is still below average. This study uses heat-moisture-treated starch (starch HMT) as a binder for reduced graphene oxide (rGO) supercapacitors. Starch HMT has been fabricated at 120 °C. The XRD diffractogram exhibits peaks at 2θ angles of 15°, 17°, 22°, and 24°. The 2θ values indicate that potato starch is of type B. FTIR spectra show the formation of OH, C–O–C, C-O, C–O–C, and C-H bonds. SEM images show cracks in the morphology. Electrochemical testing shows a specific capacity of 230 F/g at a current density of 1 A/g. The charge–discharge stability of the electrodes at 5000 cycles is 90%. These results offer a framework for developing electrode materials and binders for supercapacitors.