Issue 9, 2023

Green pepper-derived hierarchical porous carbon for supercapacitors with high performance

Abstract

Renewable, low-cost and environmentally friendly porous carbon for high performance carbon electrode materials has attracted considerable attention in the energy conversion and storage fields. Herein, we have developed a sustainable route to fabricate porous carbon materials derived from green peppers through conventional thermal annealing and KOH-activation. The as-prepared GPAC-4 with a hierarchical porous structure exhibits a high specific surface area of 1052.70 m2 g−1 and a high capacitance of 863.1 F g−1 at 1 A g−1 as well as a good capacitance retention ratio of 97.80% at 10 A g−1 over 10 000 cycles. Moreover, the assembled supercapacitor exhibits a capacitance of 214.45 F g−1 at 1 A g−1, which corresponds to a maximum energy of 42.89 W h kg−1 at a power density of 1.2 kW kg−1. Furthermore, the supercapacitor demonstrates good cycling stability with a low loss of 3.73% over 10 000 charge–discharge cycles. These findings could open up an exciting field for exploring reproducible vegetables as the raw materials for high performance supercapacitors.

Graphical abstract: Green pepper-derived hierarchical porous carbon for supercapacitors with high performance

Associated articles

Supplementary files

Article information

Article type
Paper
Submitted
25 Jan 2023
Accepted
03 Apr 2023
First published
06 Apr 2023
This article is Open Access
Creative Commons BY-NC license

Mater. Adv., 2023,4, 2192-2200

Green pepper-derived hierarchical porous carbon for supercapacitors with high performance

Y. Zeng, F. Zhang, J. Wu and J. Huang, Mater. Adv., 2023, 4, 2192 DOI: 10.1039/D3MA00045A

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party commercial publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements