Supercapacitor Materials and Fabrication
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Abstract
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).
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@article{Lu2026Conversion,
title = {Conversion of Biological Waste into Porous Carbon with Hierarchical Porous Architecture for High-Performance Supercapacitors},
author = {Yueyang Lu and Siyu Han and Yizhe Wang and Zekun Tang and Xiaoliang Wu},
journal = {Nanomaterials},
year = {2026},
doi = {10.3390/nano16161035},
url = {https://doi.org/10.3390/nano16161035}
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