ZnCl2-Activated Nanoporous Carbon Materials from Phyllanthus emblica Seed for High-Performance Supercapacitors

Lok Kumar Shrestha; Sarita Manandhar; Sabina Shahi; Rabindra Nath Acharyya; Aabha Puri; Chhabi Lal Gnawali; Rinita Rajbhandari; Katsuhiko Ariga

doi:10.3390/c11040095

論文 ZnCl2-Activated Nanoporous Carbon Materials from Phyllanthus emblica Seed for High-Performance Supercapacitors

Lok Kumar Shrestha ; Sarita Manandhar ; Sabina Shahi ; Rabindra Nath Acharyya ; Aabha Puri ; Chhabi Lal Gnawali ; Rinita Rajbhandari ; Katsuhiko Ariga

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Lok Kumar Shrestha, Sarita Manandhar, Sabina Shahi, Rabindra Nath Acharyya, Aabha Puri, Chhabi Lal Gnawali, Rinita Rajbhandari, Katsuhiko Ariga. ZnCl2-Activated Nanoporous Carbon Materials from Phyllanthus emblica Seed for High-Performance Supercapacitors. C. 2025, 11 (4), 95. https://doi.org/10.3390/c11040095

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This research reports the synthesis of activated nanoporous carbon material from Phyl-lanthus emblica (Amala)- a Biomass material which is eco-friendly, economical, and sus-tainable precursor to prepare activated carbon, by zinc chloride (ZnCl2) activation at vari-ous temperatures (500-700 °C) under the nitrogen gas atmosphere. The sample carbonized at 700 °C (AmC_Z700) attained a high specific surface area 1436 m2 g-1 and a total pore volume of 0.962 cm3 g-1 and the electrode showed excellent supercapacitance performance, attaining a high specific capacitance of 263 F g-1 at a current density of 1 A g-1 followed by 55% capacitance retention at 50 A g-1.

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