Work

Effect of chemical activation agents on properties of durian peel-derived activated carbon for high-energy supercapacitor applications

Year: 2026

Type: article

Abstract: To enhance the potential of sustainable energy utilization using waste-derived materials in Southeast Asia. This work investigates the effect of physical and electrochemical properties of durian peel derived graphitic activated carbon for high performance energy storage applications. The activating agents KOH, NaOH, H 3 PO 4 and H 2 SO 4 (DK, DN, DP, and DS) resulted in surface areas of 1010, 836, 41 and 10 m 2 g −1 . The surface area of the electrodes is playing the significant role in specific capacitance values. In three-electrode system, DK, DN, DP, and DS electrode's capacitance values are 244.64, 168.57, 120.41 and 133.92 F g −1 at 1 A g −1 . Moreover, the activated carbon from KOH activation agent was fabricated as the anode and cathode for the symmetric supercapacitor device. Furthermore, an assembled device has a maximum capacitance about 142.48 F g −1 with an energy density of 49.0 Wh k g −1 and a power density of 750 W k g −1 at 1 A g −1 . The device also demonstrated outstanding cycle retention about 85.8 % of its initial capacitance after 2000 cycles. Finally, two devices connected in series successfully powered a 1.8 V LED, providing clear proof of concept for the developed supercapacitor system.

Source: Biomass and Bioenergy

DOI: 10.1016/j.biombioe.2026.109031

Authors: Siwakorn Chitpreecha, Uma Shankar Veerasamy, Konlayutt Punyawudho, Chatchawan Chaichana, Chihiro Sekine, Yuttana Mona

Institutions: Chiang Mai University, Muroran Institute of Technology

Language: English

Topic: Supercapacitor Materials and Fabrication

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

SDGs: Affordable and clean energy, Responsible consumption and production

Open Access status: hybrid

Estimated APC paid: $4,270