Cargando…

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...

Descripción completa

Detalles Bibliográficos
Autores principales: Qu, Xiaoxiao, Kang, Weiwei, Lai, Changwei, Zhang, Chuanxiang, Hong, Suck Won
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
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
_version_ 1784650103192027136
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
work_keys_str_mv AT quxiaoxiao asimpleroutetoproducehighlyefficientporouscarbonsrecycledfromteawasteforhighperformancesymmetricsupercapacitorelectrodes
AT kangweiwei asimpleroutetoproducehighlyefficientporouscarbonsrecycledfromteawasteforhighperformancesymmetricsupercapacitorelectrodes
AT laichangwei asimpleroutetoproducehighlyefficientporouscarbonsrecycledfromteawasteforhighperformancesymmetricsupercapacitorelectrodes
AT zhangchuanxiang asimpleroutetoproducehighlyefficientporouscarbonsrecycledfromteawasteforhighperformancesymmetricsupercapacitorelectrodes
AT hongsuckwon asimpleroutetoproducehighlyefficientporouscarbonsrecycledfromteawasteforhighperformancesymmetricsupercapacitorelectrodes
AT quxiaoxiao simpleroutetoproducehighlyefficientporouscarbonsrecycledfromteawasteforhighperformancesymmetricsupercapacitorelectrodes
AT kangweiwei simpleroutetoproducehighlyefficientporouscarbonsrecycledfromteawasteforhighperformancesymmetricsupercapacitorelectrodes
AT laichangwei simpleroutetoproducehighlyefficientporouscarbonsrecycledfromteawasteforhighperformancesymmetricsupercapacitorelectrodes
AT zhangchuanxiang simpleroutetoproducehighlyefficientporouscarbonsrecycledfromteawasteforhighperformancesymmetricsupercapacitorelectrodes
AT hongsuckwon simpleroutetoproducehighlyefficientporouscarbonsrecycledfromteawasteforhighperformancesymmetricsupercapacitorelectrodes