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Polyacetylene carbon materials: facile preparation using AlCl(3) catalyst and excellent electrochemical performance for supercapacitors
Polyacetylene (PA) was synthesized for the first time under mild conditions via polymerization of acetylene in n-octane with AlCl(3) as a catalyst, whereby a series of PA-derived carbon materials were obtained. Their composition and structure were characterized and their electrochemical performance...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9063493/ https://www.ncbi.nlm.nih.gov/pubmed/35516990 http://dx.doi.org/10.1039/c9ra01205b |
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author | Luo, Tianhang Xu, Xuebing Jiang, Maoqiang Lu, Ying-zhou Meng, Hong Li, Chun-xi |
author_facet | Luo, Tianhang Xu, Xuebing Jiang, Maoqiang Lu, Ying-zhou Meng, Hong Li, Chun-xi |
author_sort | Luo, Tianhang |
collection | PubMed |
description | Polyacetylene (PA) was synthesized for the first time under mild conditions via polymerization of acetylene in n-octane with AlCl(3) as a catalyst, whereby a series of PA-derived carbon materials were obtained. Their composition and structure were characterized and their electrochemical performance was evaluated systematically. It is found that acetylene gas at 1 MPa can polymerize explosively at room temperature under catalysis of AlCl(3), forming acetylene black-like PA and a great amount of H(2), while in the presence of n-octane solvent, acetylene polymerizes smoothly at higher temperature (30 to 300 °C), forming PA with a H(CH[double bond, length as m-dash]CH)(n)H structure. A series of PA-derived carbon materials are obtained by treating PA with KOH at 800 °C. The as-synthesizzed PA-100–KOH exhibits a high specific surface area (∼2500 m(2) g(−1)), high specific capacitance (241 F g(−1) at a current density of 0.1 A g(−1) and 143 F g(−1) at 5 A g(−1)), low AC resistance, and good cycling stability with 91.7% maintenance of capacity after 2000 cycles at a current density of 2 A g(−1). This paper provides a new method for the facile synthesis of PA and a novel carbon source for supercapacitor electrode materials with excellent electrochemical performance and practical application. |
format | Online Article Text |
id | pubmed-9063493 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90634932022-05-04 Polyacetylene carbon materials: facile preparation using AlCl(3) catalyst and excellent electrochemical performance for supercapacitors Luo, Tianhang Xu, Xuebing Jiang, Maoqiang Lu, Ying-zhou Meng, Hong Li, Chun-xi RSC Adv Chemistry Polyacetylene (PA) was synthesized for the first time under mild conditions via polymerization of acetylene in n-octane with AlCl(3) as a catalyst, whereby a series of PA-derived carbon materials were obtained. Their composition and structure were characterized and their electrochemical performance was evaluated systematically. It is found that acetylene gas at 1 MPa can polymerize explosively at room temperature under catalysis of AlCl(3), forming acetylene black-like PA and a great amount of H(2), while in the presence of n-octane solvent, acetylene polymerizes smoothly at higher temperature (30 to 300 °C), forming PA with a H(CH[double bond, length as m-dash]CH)(n)H structure. A series of PA-derived carbon materials are obtained by treating PA with KOH at 800 °C. The as-synthesizzed PA-100–KOH exhibits a high specific surface area (∼2500 m(2) g(−1)), high specific capacitance (241 F g(−1) at a current density of 0.1 A g(−1) and 143 F g(−1) at 5 A g(−1)), low AC resistance, and good cycling stability with 91.7% maintenance of capacity after 2000 cycles at a current density of 2 A g(−1). This paper provides a new method for the facile synthesis of PA and a novel carbon source for supercapacitor electrode materials with excellent electrochemical performance and practical application. The Royal Society of Chemistry 2019-04-16 /pmc/articles/PMC9063493/ /pubmed/35516990 http://dx.doi.org/10.1039/c9ra01205b Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/ |
spellingShingle | Chemistry Luo, Tianhang Xu, Xuebing Jiang, Maoqiang Lu, Ying-zhou Meng, Hong Li, Chun-xi Polyacetylene carbon materials: facile preparation using AlCl(3) catalyst and excellent electrochemical performance for supercapacitors |
title | Polyacetylene carbon materials: facile preparation using AlCl(3) catalyst and excellent electrochemical performance for supercapacitors |
title_full | Polyacetylene carbon materials: facile preparation using AlCl(3) catalyst and excellent electrochemical performance for supercapacitors |
title_fullStr | Polyacetylene carbon materials: facile preparation using AlCl(3) catalyst and excellent electrochemical performance for supercapacitors |
title_full_unstemmed | Polyacetylene carbon materials: facile preparation using AlCl(3) catalyst and excellent electrochemical performance for supercapacitors |
title_short | Polyacetylene carbon materials: facile preparation using AlCl(3) catalyst and excellent electrochemical performance for supercapacitors |
title_sort | polyacetylene carbon materials: facile preparation using alcl(3) catalyst and excellent electrochemical performance for supercapacitors |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9063493/ https://www.ncbi.nlm.nih.gov/pubmed/35516990 http://dx.doi.org/10.1039/c9ra01205b |
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