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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...

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Autores principales: Zhou, Jiaming, Ye, Shewen, Zeng, Qinqin, Yang, Hui, Chen, Jiahao, Guo, Ziting, Jiang, Honghui, Rajan, Karthikeyan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2020
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.
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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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