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A Simple Route to Produce Highly Efficient Porous Carbons Recycled from Tea Waste for High-Performance Symmetric Supercapacitor Electrodes
High-performance porous carbons derived from tea waste were prepared by hydrothermal treatment, combined together with KOH activation. The heat-treatment-processed materials possess an abundant hierarchical structure, with a large specific surface of 2235 m(2) g(−1) and wetting-complemental hydrophi...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8838339/ https://www.ncbi.nlm.nih.gov/pubmed/35164053 http://dx.doi.org/10.3390/molecules27030791 |
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author | Qu, Xiaoxiao Kang, Weiwei Lai, Changwei Zhang, Chuanxiang Hong, Suck Won |
author_facet | Qu, Xiaoxiao Kang, Weiwei Lai, Changwei Zhang, Chuanxiang Hong, Suck Won |
author_sort | Qu, Xiaoxiao |
collection | PubMed |
description | High-performance porous carbons derived from tea waste were prepared by hydrothermal treatment, combined together with KOH activation. The heat-treatment-processed materials possess an abundant hierarchical structure, with a large specific surface of 2235 m(2) g(−1) and wetting-complemental hydrophilicity for electrolytes. In a two-electrode system, the porous carbon electrodes’ built-in supercapacitor exhibited a high specific capacitance of 256 F g(−1) at 0.05 A g(−1), an excellent capacitance retention of 95.4% after 10,000 cycles, and a low leakage current of 0.014 mA. In our work, the collective results present that the precursor crafted from the tea waste can be a promising strategy to prepare valuable electrodes for high-performance supercapacitors, which offers a practical strategy to recycle biowastes into manufactured materials in energy storage applications. |
format | Online Article Text |
id | pubmed-8838339 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-88383392022-02-13 A Simple Route to Produce Highly Efficient Porous Carbons Recycled from Tea Waste for High-Performance Symmetric Supercapacitor Electrodes Qu, Xiaoxiao Kang, Weiwei Lai, Changwei Zhang, Chuanxiang Hong, Suck Won Molecules Article High-performance porous carbons derived from tea waste were prepared by hydrothermal treatment, combined together with KOH activation. The heat-treatment-processed materials possess an abundant hierarchical structure, with a large specific surface of 2235 m(2) g(−1) and wetting-complemental hydrophilicity for electrolytes. In a two-electrode system, the porous carbon electrodes’ built-in supercapacitor exhibited a high specific capacitance of 256 F g(−1) at 0.05 A g(−1), an excellent capacitance retention of 95.4% after 10,000 cycles, and a low leakage current of 0.014 mA. In our work, the collective results present that the precursor crafted from the tea waste can be a promising strategy to prepare valuable electrodes for high-performance supercapacitors, which offers a practical strategy to recycle biowastes into manufactured materials in energy storage applications. MDPI 2022-01-25 /pmc/articles/PMC8838339/ /pubmed/35164053 http://dx.doi.org/10.3390/molecules27030791 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 Qu, Xiaoxiao Kang, Weiwei Lai, Changwei Zhang, Chuanxiang Hong, Suck Won A Simple Route to Produce Highly Efficient Porous Carbons Recycled from Tea Waste for High-Performance Symmetric Supercapacitor Electrodes |
title | A Simple Route to Produce Highly Efficient Porous Carbons Recycled from Tea Waste for High-Performance Symmetric Supercapacitor Electrodes |
title_full | A Simple Route to Produce Highly Efficient Porous Carbons Recycled from Tea Waste for High-Performance Symmetric Supercapacitor Electrodes |
title_fullStr | A Simple Route to Produce Highly Efficient Porous Carbons Recycled from Tea Waste for High-Performance Symmetric Supercapacitor Electrodes |
title_full_unstemmed | A Simple Route to Produce Highly Efficient Porous Carbons Recycled from Tea Waste for High-Performance Symmetric Supercapacitor Electrodes |
title_short | A Simple Route to Produce Highly Efficient Porous Carbons Recycled from Tea Waste for High-Performance Symmetric Supercapacitor Electrodes |
title_sort | simple route to produce highly efficient porous carbons recycled from tea waste for high-performance symmetric supercapacitor electrodes |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8838339/ https://www.ncbi.nlm.nih.gov/pubmed/35164053 http://dx.doi.org/10.3390/molecules27030791 |
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