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Flexible and Sustainable Electrode Architecture Based on Prussian Blue Analogue-Decorated Carbon Nanofiber Aerogel on Biomass-Derived Porous Carbon for High-Performance

Supercapacitors, Beke Michael Abraham, Alagoa Emmanuel Egbo W Mansi, Ebi Kieribo, and Jeremiah Akpodoitei Yabefa

Abstract

In this study, we report a novel and sustainable electrode architecture for supercapacitors comprising hierarchically interwoven Prussian Blue Analogue (PBA) nanosheets embedded within a carbon nanofiber (CNF) aerogel matrix, deposited on a flexible biomass-derived porous carbon substrate. This hybrid design leverages the high pseudocapacitance of transition metal-based PBAs, the electronic conductivity and interconnected network of carbon nanofibers, and the eco-friendly nature of carbonized biomass scaffolds. The resulting binder- free electrodes exhibit a specific capacitance of 732 F g?¹ at 1 A g?¹, outstanding rate performance, and remarkable cycling stability with 91.4% capacitance retention after 8000 cycles. This work demonstrates a scalable, low-cost, and green strategy for flexible energy storage applications.

Keywords

Prussian

References

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