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Constructing a Carbon-Encapsulated Carbon Composite Material with Hierarchically Porous Architectures for Efficient Capacitive Storage in Organic Supercapacitors

Hierarchical porous activated carbon (HPAC) materials with fascinating porous features are favored for their function as active materials for supercapacitors. However, achieving high mass-loading of the HPAC electrodes remains challenging. Inspired by the concepts of carbon/carbon (C/C) composites a...

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Autores principales: Amirtha, Rene Mary, Hsu, Hao-Huan, Abdelaal, Mohamed M., Anbunathan, Ammaiyappan, Mohamed, Saad G., Yang, Chun-Chen, Hung, Tai-Feng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9223422/
https://www.ncbi.nlm.nih.gov/pubmed/35743213
http://dx.doi.org/10.3390/ijms23126774
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author Amirtha, Rene Mary
Hsu, Hao-Huan
Abdelaal, Mohamed M.
Anbunathan, Ammaiyappan
Mohamed, Saad G.
Yang, Chun-Chen
Hung, Tai-Feng
author_facet Amirtha, Rene Mary
Hsu, Hao-Huan
Abdelaal, Mohamed M.
Anbunathan, Ammaiyappan
Mohamed, Saad G.
Yang, Chun-Chen
Hung, Tai-Feng
author_sort Amirtha, Rene Mary
collection PubMed
description Hierarchical porous activated carbon (HPAC) materials with fascinating porous features are favored for their function as active materials for supercapacitors. However, achieving high mass-loading of the HPAC electrodes remains challenging. Inspired by the concepts of carbon/carbon (C/C) composites and hydrogels, a novel hydrogel-derived HPAC (H-HPAC) encapsulated H-HPAC (H@H) composite material was successfully synthesized in this study. In comparison with the original H-HPAC, it is noticed that the specific surface area and pore parameters of the resulting H@H are observably decreased, while the proportions of nitrogen species are dramatically enhanced. The free-standing and flexible H@H electrodes with a mass-loading of 7.5 mg/cm(2) are further prepared for electrochemical measurements. The experiments revealed remarkable reversible capacitance (118.6 F/g at 1 mA/cm(2)), rate capability (73.9 F/g at 10 mA/cm(2)), and cycling stability (76.6% of retention after 30,000 cycles at 5 mA) are delivered by the coin-type symmetric cells. The cycling stability is even better than that of the H-HPAC electrode. Consequently, the findings of the present study suggest that the nature of the HPAC surface is a significant factor affecting the corresponding capacitive performances.
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spelling pubmed-92234222022-06-24 Constructing a Carbon-Encapsulated Carbon Composite Material with Hierarchically Porous Architectures for Efficient Capacitive Storage in Organic Supercapacitors Amirtha, Rene Mary Hsu, Hao-Huan Abdelaal, Mohamed M. Anbunathan, Ammaiyappan Mohamed, Saad G. Yang, Chun-Chen Hung, Tai-Feng Int J Mol Sci Article Hierarchical porous activated carbon (HPAC) materials with fascinating porous features are favored for their function as active materials for supercapacitors. However, achieving high mass-loading of the HPAC electrodes remains challenging. Inspired by the concepts of carbon/carbon (C/C) composites and hydrogels, a novel hydrogel-derived HPAC (H-HPAC) encapsulated H-HPAC (H@H) composite material was successfully synthesized in this study. In comparison with the original H-HPAC, it is noticed that the specific surface area and pore parameters of the resulting H@H are observably decreased, while the proportions of nitrogen species are dramatically enhanced. The free-standing and flexible H@H electrodes with a mass-loading of 7.5 mg/cm(2) are further prepared for electrochemical measurements. The experiments revealed remarkable reversible capacitance (118.6 F/g at 1 mA/cm(2)), rate capability (73.9 F/g at 10 mA/cm(2)), and cycling stability (76.6% of retention after 30,000 cycles at 5 mA) are delivered by the coin-type symmetric cells. The cycling stability is even better than that of the H-HPAC electrode. Consequently, the findings of the present study suggest that the nature of the HPAC surface is a significant factor affecting the corresponding capacitive performances. MDPI 2022-06-17 /pmc/articles/PMC9223422/ /pubmed/35743213 http://dx.doi.org/10.3390/ijms23126774 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Amirtha, Rene Mary
Hsu, Hao-Huan
Abdelaal, Mohamed M.
Anbunathan, Ammaiyappan
Mohamed, Saad G.
Yang, Chun-Chen
Hung, Tai-Feng
Constructing a Carbon-Encapsulated Carbon Composite Material with Hierarchically Porous Architectures for Efficient Capacitive Storage in Organic Supercapacitors
title Constructing a Carbon-Encapsulated Carbon Composite Material with Hierarchically Porous Architectures for Efficient Capacitive Storage in Organic Supercapacitors
title_full Constructing a Carbon-Encapsulated Carbon Composite Material with Hierarchically Porous Architectures for Efficient Capacitive Storage in Organic Supercapacitors
title_fullStr Constructing a Carbon-Encapsulated Carbon Composite Material with Hierarchically Porous Architectures for Efficient Capacitive Storage in Organic Supercapacitors
title_full_unstemmed Constructing a Carbon-Encapsulated Carbon Composite Material with Hierarchically Porous Architectures for Efficient Capacitive Storage in Organic Supercapacitors
title_short Constructing a Carbon-Encapsulated Carbon Composite Material with Hierarchically Porous Architectures for Efficient Capacitive Storage in Organic Supercapacitors
title_sort constructing a carbon-encapsulated carbon composite material with hierarchically porous architectures for efficient capacitive storage in organic supercapacitors
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9223422/
https://www.ncbi.nlm.nih.gov/pubmed/35743213
http://dx.doi.org/10.3390/ijms23126774
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