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May 1, 20264 citations

Activated Carbon Framework From Carbon Nanospheres as Supercapacitor: Comparative Effects of Acidic, Alkaline, and Neutral Activation.

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SGSweety GuptaPKPratigya KujurAPAmit Paul

Key Points

  • This research aims to explore how different activation methods affect the properties of activated carbon for use in supercapacitors.
  • Compared activation effects using acidic, alkaline, and neutral methods.
  • Measured charge storage and resistance via electrochemical impedance spectroscopy.
  • Analyzed pore structure and surface chemistry of activated carbon frameworks.
  • KOH-activated carbon achieved a charge storage of 219 F/g and a rate capability of 69.8%.
  • Electrochemical impedance spectroscopy indicated KOH activation provided the lowest resistance.
  • Activation method significantly influences pore structure and double-layer capacitance.

Abstract

activation introduced oxygenated groups and mesopores, yielding 219 F/g with the best rate capability (69.8%). Electrochemical impedance spectroscopy confirmed the lowest resistance for KOH-activated CNS, consistent with its superior double-layer capacitance. This study demonstrates that activation strategy governs pore structure, surface chemistry, and charge storage, providing guidelines for tailoring nanocarbon electrodes for high-performance supercapacitors.

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Cite This Study

Gupta et al. (2026) studied this question.

synapsesocial.com/papers/69f442d4967e944ac556648bhttps://doi.org/10.1002/cphc.202500791
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Improved Electrochemical Performance of Activated Carbon Nanofibers for Supercapacitor Applications in Redox Additive Electrolytes2026
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