Enhanced Capacitive Performance of N-Doped Activated Carbon from Petroleum Coke by Combining Ammoxidation with KOH Activation

Low cost with high specific capacitance and energy density is the critical and main requirement for practical supercapacitors. A novel N-doped activated carbon was fabricated by KOH activation of petroleum coke and ammonia treatment. The as-prepared carbon exhibits a high specific surface area (1875...

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Detalles Bibliográficos
Autores principales: Zhang, Yan, Zhang, Yu, Huang, Jufeng, Du, Dongfeng, Xing, Wei, Yan, Zifeng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2016
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4864797/
https://www.ncbi.nlm.nih.gov/pubmed/27167734
http://dx.doi.org/10.1186/s11671-016-1460-3
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author Zhang, Yan
Zhang, Yu
Huang, Jufeng
Du, Dongfeng
Xing, Wei
Yan, Zifeng
author_facet Zhang, Yan
Zhang, Yu
Huang, Jufeng
Du, Dongfeng
Xing, Wei
Yan, Zifeng
author_sort Zhang, Yan
collection PubMed
description Low cost with high specific capacitance and energy density is the critical and main requirement for practical supercapacitors. A novel N-doped activated carbon was fabricated by KOH activation of petroleum coke and ammonia treatment. The as-prepared carbon exhibits a high specific surface area (1875 m(2) g(−1)), excellent conductivity (57 S m(−1)), and rich nitrogen level (4.0 wt%). Those outstanding characters result in this porous carbon a hopeful electrode material for electrochemical supercapacitors. It shows high specific capacitance (up to 299 F g(−1)) and superior rate capability (76 % retention ratio at 20 A g(−1)) in 30 wt% KOH aqueous electrolyte. This efficient treatment method ensures its prosperous application in energy storage systems.
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spelling pubmed-48647972016-05-31 Enhanced Capacitive Performance of N-Doped Activated Carbon from Petroleum Coke by Combining Ammoxidation with KOH Activation Zhang, Yan Zhang, Yu Huang, Jufeng Du, Dongfeng Xing, Wei Yan, Zifeng Nanoscale Res Lett Nano Express Low cost with high specific capacitance and energy density is the critical and main requirement for practical supercapacitors. A novel N-doped activated carbon was fabricated by KOH activation of petroleum coke and ammonia treatment. The as-prepared carbon exhibits a high specific surface area (1875 m(2) g(−1)), excellent conductivity (57 S m(−1)), and rich nitrogen level (4.0 wt%). Those outstanding characters result in this porous carbon a hopeful electrode material for electrochemical supercapacitors. It shows high specific capacitance (up to 299 F g(−1)) and superior rate capability (76 % retention ratio at 20 A g(−1)) in 30 wt% KOH aqueous electrolyte. This efficient treatment method ensures its prosperous application in energy storage systems. Springer US 2016-05-11 /pmc/articles/PMC4864797/ /pubmed/27167734 http://dx.doi.org/10.1186/s11671-016-1460-3 Text en © Zhang et al. 2016 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Nano Express
Zhang, Yan
Zhang, Yu
Huang, Jufeng
Du, Dongfeng
Xing, Wei
Yan, Zifeng
Enhanced Capacitive Performance of N-Doped Activated Carbon from Petroleum Coke by Combining Ammoxidation with KOH Activation
title Enhanced Capacitive Performance of N-Doped Activated Carbon from Petroleum Coke by Combining Ammoxidation with KOH Activation
title_full Enhanced Capacitive Performance of N-Doped Activated Carbon from Petroleum Coke by Combining Ammoxidation with KOH Activation
title_fullStr Enhanced Capacitive Performance of N-Doped Activated Carbon from Petroleum Coke by Combining Ammoxidation with KOH Activation
title_full_unstemmed Enhanced Capacitive Performance of N-Doped Activated Carbon from Petroleum Coke by Combining Ammoxidation with KOH Activation
title_short Enhanced Capacitive Performance of N-Doped Activated Carbon from Petroleum Coke by Combining Ammoxidation with KOH Activation
title_sort enhanced capacitive performance of n-doped activated carbon from petroleum coke by combining ammoxidation with koh activation
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4864797/
https://www.ncbi.nlm.nih.gov/pubmed/27167734
http://dx.doi.org/10.1186/s11671-016-1460-3
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