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Updated: Aug 28, 2026
Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
Published on: January 7, 2022
Conversion of Biological Waste into Porous Carbon with Hierarchical Porous Architecture for High-Performance
Yueyang Lu1, Siyu Han2, Yizhe Wang1
1State Key Laboratory of Utilization of Woody Oil Resource, College of Chemistry, Chemical and Resource Utilization, Northeast Forestry University, Harbin 150000, China.
Abstract:
Biowaste-derived porous carbon materials show promise as electrode materials for supercapacitors owing to their low cost, renewable nature, widespread availability, and high specific surface area. Herein, boron and nitrogen co-doped porous carbon was synthesized via a facile one-step activation approach using reed spike as carbon precursor, ammonium borate as both the nitrogen and boron source, and potassium bicarbonate as activator. The prepared PC-700 materials possess large specific surface areas with hierarchical porous architectures and rich N (2.54 at%), O (11.23 at%) and B (2.59 at%) functional groups. As an electrode material, the PC-700 materials show a specific capacitance of 329.6 F g-1 at 0.5 A g-1 and long lifespan. Notably, the assembled PC-700 symmetric super capacitor achieves an energy density of 20.5 Wh kg-1 and excellent electrochemical stabilization (98.60% capacity retention after 10,000 cycles).
