3D-porous activated carbon morphological modification of Manihot esculenta tuber and Bambusa blumeana stem for high-power density supercapacitor: Biomass waste to sustainable energy

作者：Markus Diantoro, Nuviya Illa Muthi Aturroifah, Ishmah Luthfiyah, Joko Utomo, Ida Hamidah, Brian Yuliarto, Andrivo Rusydi, Santi Maensiri, W. Meevasana · 发表于：Carbon Resources Conversion · 年份：2025 · DOI：10.1016/j.crcon.2025.100313 · 被引用次数：13 · 研究领域：Supercapacitor Materials and Fabrication、Electrospun Nanofibers in Biomedical Applications

• Activated carbon derived from Manihot esculenta tuber and Bambusa blumeana stem, modified with 0.06 M ZnCl 2 , exhibits a well-defined microporous structure and a specific surface area of 516.29 m 2 g −1 . • The modified carbon delivers a high power density of 1086.12 Wkg −1 at a voltage window of 2 V, with excellent electrochemical performance and 90.8 % capacitance retention after 5000 cycles. • Manihot esculenta tuber and Bambusa blumeana stem-derived activated carbon provides an environmentally friendly solution for high-performance energy storage, offering rapid ion transport and cost-effective supercapacitor applications. Activated carbon derived from biomass is an environmentally friendly and low-cost supercapacitor electrode material. The diverse morphology and pore shape of activated carbon have a significant impact on enhancing the storage capacity of supercapacitors. However, the disparate distribution of pore sizes in activated carbon has a negative effect on energy density. In the present study, the synthesis and modification of the carbon pore structure of Manihot esculenta tuber and Bambusa blumeana stem was carried out using a sonochemical-assisted hydrothermal method with various chemicals (0.06 M KOH, 0.06 M PVP, 0.06 M ZnCl 2 ). The 3D pore structure of the sample modified with 0.06 M ZnCl 2 exhibited a well-defined microporous architecture and a substantial specific surface area of 516.29 m 2 g −1 , leading to excellent electrochemical performance in coi...