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A hierarchical porous P-doped carbon electrode through hydrothermal carbonization of pomelo valves for high-performance supercapacitors

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Abstract

Porous carbon materials are synthesized from pomelo valves by the hydrothermal activation of H3PO4 followed by simple carbonization. The as-synthesized hierarchically porous carbon electrode exhibits a high specific capacitance of 966.4 F g−1 at 1 A g−1 and an ultra-high stability of 95.6% even after 10 000 cycles. Moreover, the supercapacitor also demonstrates a maximum energy of 36.39 W h kg−1 and a maximum power of 33.33 kW kg−1 with an energy retention of 25.56 W h kg−1, which paves the way for the development of high-performance, green supercapacitors for advanced energy storage systems.

Graphical abstract: A hierarchical porous P-doped carbon electrode through hydrothermal carbonization of pomelo valves for high-performance supercapacitors

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Supplementary files

Article information


Submitted
14 Mar 2020
Accepted
11 Jun 2020
First published
22 Jun 2020

This article is Open Access

Nanoscale Adv., 2020, Advance Article
Article type
Paper

A hierarchical porous P-doped carbon electrode through hydrothermal carbonization of pomelo valves for high-performance supercapacitors

J. Huang, J. Chen, Z. Yin and J. Wu, Nanoscale Adv., 2020, Advance Article , DOI: 10.1039/D0NA00211A

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