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Monodisperse Carbon Nanospheres with Hierarchical Porous Structure as Electrode Material for Supercapacitor

Carbon nanospheres with distinguishable microstructure were prepared by carbonization and subsequent KOH activation of F108/resorcinol-formaldehyde composites. The dosage of triblock copolymer Pluronic F108 is crucial to the microstructure differences. With the adding of F108, the polydisperse carbo...

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Autores principales: Yang, Xiutao, Xia, Hui, Liang, Zhongguan, Li, Haiyan, Yu, Hongwen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5612903/
https://www.ncbi.nlm.nih.gov/pubmed/28948578
http://dx.doi.org/10.1186/s11671-017-2318-z
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author Yang, Xiutao
Xia, Hui
Liang, Zhongguan
Li, Haiyan
Yu, Hongwen
author_facet Yang, Xiutao
Xia, Hui
Liang, Zhongguan
Li, Haiyan
Yu, Hongwen
author_sort Yang, Xiutao
collection PubMed
description Carbon nanospheres with distinguishable microstructure were prepared by carbonization and subsequent KOH activation of F108/resorcinol-formaldehyde composites. The dosage of triblock copolymer Pluronic F108 is crucial to the microstructure differences. With the adding of F108, the polydisperse carbon nanospheres (PCNS) with microporous structure, monodisperse carbon nanospheres (MCNS) with hierarchical porous structure, and agglomerated carbon nanospheres (ACNS) were obtained. Their microstructure and capacitance properties were carefully compared. As a result of the synergetic effect of mono-dispersion spheres and hierarchical porous structures, the MCNS sample shows improved electrochemical performance, i.e., the highest specific capacitance of 224 F g(−1) (0.2 A g(−1)), the best rate capability (73% retention at 20 A g(−1)), and the most excellent capacitance retention of 93% over 10,000 cycles, making it to be the promising electrode material for high-performance supercapacitors.
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spelling pubmed-56129032017-10-10 Monodisperse Carbon Nanospheres with Hierarchical Porous Structure as Electrode Material for Supercapacitor Yang, Xiutao Xia, Hui Liang, Zhongguan Li, Haiyan Yu, Hongwen Nanoscale Res Lett Nano Express Carbon nanospheres with distinguishable microstructure were prepared by carbonization and subsequent KOH activation of F108/resorcinol-formaldehyde composites. The dosage of triblock copolymer Pluronic F108 is crucial to the microstructure differences. With the adding of F108, the polydisperse carbon nanospheres (PCNS) with microporous structure, monodisperse carbon nanospheres (MCNS) with hierarchical porous structure, and agglomerated carbon nanospheres (ACNS) were obtained. Their microstructure and capacitance properties were carefully compared. As a result of the synergetic effect of mono-dispersion spheres and hierarchical porous structures, the MCNS sample shows improved electrochemical performance, i.e., the highest specific capacitance of 224 F g(−1) (0.2 A g(−1)), the best rate capability (73% retention at 20 A g(−1)), and the most excellent capacitance retention of 93% over 10,000 cycles, making it to be the promising electrode material for high-performance supercapacitors. Springer US 2017-09-25 /pmc/articles/PMC5612903/ /pubmed/28948578 http://dx.doi.org/10.1186/s11671-017-2318-z Text en © The Author(s). 2017 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
Yang, Xiutao
Xia, Hui
Liang, Zhongguan
Li, Haiyan
Yu, Hongwen
Monodisperse Carbon Nanospheres with Hierarchical Porous Structure as Electrode Material for Supercapacitor
title Monodisperse Carbon Nanospheres with Hierarchical Porous Structure as Electrode Material for Supercapacitor
title_full Monodisperse Carbon Nanospheres with Hierarchical Porous Structure as Electrode Material for Supercapacitor
title_fullStr Monodisperse Carbon Nanospheres with Hierarchical Porous Structure as Electrode Material for Supercapacitor
title_full_unstemmed Monodisperse Carbon Nanospheres with Hierarchical Porous Structure as Electrode Material for Supercapacitor
title_short Monodisperse Carbon Nanospheres with Hierarchical Porous Structure as Electrode Material for Supercapacitor
title_sort monodisperse carbon nanospheres with hierarchical porous structure as electrode material for supercapacitor
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5612903/
https://www.ncbi.nlm.nih.gov/pubmed/28948578
http://dx.doi.org/10.1186/s11671-017-2318-z
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