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Nitrogen and Phosphorus Co-doped Porous Carbon for High-Performance Supercapacitors
As one of the most promising fast energy storage devices, supercapacitor has been attracting intense attention for many emerging applications. However, how to enhance the electrochemical performance of electrode materials is still the main issue among various researches. In this paper, hierarchical...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7045068/ https://www.ncbi.nlm.nih.gov/pubmed/32154218 http://dx.doi.org/10.3389/fchem.2020.00105 |
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author | Zhou, Jiaming Ye, Shewen Zeng, Qinqin Yang, Hui Chen, Jiahao Guo, Ziting Jiang, Honghui Rajan, Karthikeyan |
author_facet | Zhou, Jiaming Ye, Shewen Zeng, Qinqin Yang, Hui Chen, Jiahao Guo, Ziting Jiang, Honghui Rajan, Karthikeyan |
author_sort | Zhou, Jiaming |
collection | PubMed |
description | As one of the most promising fast energy storage devices, supercapacitor has been attracting intense attention for many emerging applications. However, how to enhance the electrochemical performance of electrode materials is still the main issue among various researches. In this paper, hierarchical porous carbons derived from Eleocharis dulcis has been prepared by chemical activation process with the aid of KOH at elevated temperature. Results show that the N, P co-doped porous carbon exhibits excellent electrochemical performance, it owns a specific capacitance of 340.2 F/g at 1 A/g, and obtains outstanding cycling stability of 96.9% of capacitance retention at 10 A/g after 5,000 cycles in a three-electrode system. Moreover, in the two-electrode system, the product still maintains a high specific capacitance of 227.2 F/g at 1 A/g, and achieves good electrochemical cycle stability (94.2% of capacitance retention at 10 A/g after 10,000 cycles); besides, its power/energy density are 3694.084 and 26.289 Wh/kg, respectively. Therefore, the combination of facile synthesis strategy and excellent electrochemical performance makes Eleocharis dulcis-based porous carbon as a promising electrode material for supercapacitor. |
format | Online Article Text |
id | pubmed-7045068 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-70450682020-03-09 Nitrogen and Phosphorus Co-doped Porous Carbon for High-Performance Supercapacitors Zhou, Jiaming Ye, Shewen Zeng, Qinqin Yang, Hui Chen, Jiahao Guo, Ziting Jiang, Honghui Rajan, Karthikeyan Front Chem Chemistry As one of the most promising fast energy storage devices, supercapacitor has been attracting intense attention for many emerging applications. However, how to enhance the electrochemical performance of electrode materials is still the main issue among various researches. In this paper, hierarchical porous carbons derived from Eleocharis dulcis has been prepared by chemical activation process with the aid of KOH at elevated temperature. Results show that the N, P co-doped porous carbon exhibits excellent electrochemical performance, it owns a specific capacitance of 340.2 F/g at 1 A/g, and obtains outstanding cycling stability of 96.9% of capacitance retention at 10 A/g after 5,000 cycles in a three-electrode system. Moreover, in the two-electrode system, the product still maintains a high specific capacitance of 227.2 F/g at 1 A/g, and achieves good electrochemical cycle stability (94.2% of capacitance retention at 10 A/g after 10,000 cycles); besides, its power/energy density are 3694.084 and 26.289 Wh/kg, respectively. Therefore, the combination of facile synthesis strategy and excellent electrochemical performance makes Eleocharis dulcis-based porous carbon as a promising electrode material for supercapacitor. Frontiers Media S.A. 2020-02-20 /pmc/articles/PMC7045068/ /pubmed/32154218 http://dx.doi.org/10.3389/fchem.2020.00105 Text en Copyright © 2020 Zhou, Ye, Zeng, Yang, Chen, Guo, Jiang and Rajan. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Chemistry Zhou, Jiaming Ye, Shewen Zeng, Qinqin Yang, Hui Chen, Jiahao Guo, Ziting Jiang, Honghui Rajan, Karthikeyan Nitrogen and Phosphorus Co-doped Porous Carbon for High-Performance Supercapacitors |
title | Nitrogen and Phosphorus Co-doped Porous Carbon for High-Performance Supercapacitors |
title_full | Nitrogen and Phosphorus Co-doped Porous Carbon for High-Performance Supercapacitors |
title_fullStr | Nitrogen and Phosphorus Co-doped Porous Carbon for High-Performance Supercapacitors |
title_full_unstemmed | Nitrogen and Phosphorus Co-doped Porous Carbon for High-Performance Supercapacitors |
title_short | Nitrogen and Phosphorus Co-doped Porous Carbon for High-Performance Supercapacitors |
title_sort | nitrogen and phosphorus co-doped porous carbon for high-performance supercapacitors |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7045068/ https://www.ncbi.nlm.nih.gov/pubmed/32154218 http://dx.doi.org/10.3389/fchem.2020.00105 |
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