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Flexible Supercapacitor Electrodes Based on Carbon Cloth-Supported LaMnO(3)/MnO Nano-Arrays by One-Step Electrodeposition

La-based perovskite-type oxide is a new type of supercapacitor electrode material with great potential. In the present study, LaMnO(3)/MnO (LMO/MnO) nano-arrays supported by carbon cloth are prepared via a simple one-step electrodeposition as flexible supercapacitor electrodes. The structure, deposi...

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Detalles Bibliográficos
Autores principales: Ma, Pianpian, Lei, Na, Yu, Bo, Liu, Yongkun, Jiang, Guohua, Dai, Jianming, Li, Shuhong, Lu, Qiuling
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6956280/
https://www.ncbi.nlm.nih.gov/pubmed/31771280
http://dx.doi.org/10.3390/nano9121676
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author Ma, Pianpian
Lei, Na
Yu, Bo
Liu, Yongkun
Jiang, Guohua
Dai, Jianming
Li, Shuhong
Lu, Qiuling
author_facet Ma, Pianpian
Lei, Na
Yu, Bo
Liu, Yongkun
Jiang, Guohua
Dai, Jianming
Li, Shuhong
Lu, Qiuling
author_sort Ma, Pianpian
collection PubMed
description La-based perovskite-type oxide is a new type of supercapacitor electrode material with great potential. In the present study, LaMnO(3)/MnO (LMO/MnO) nano-arrays supported by carbon cloth are prepared via a simple one-step electrodeposition as flexible supercapacitor electrodes. The structure, deposit morphology of LMO/MnO, and the corresponding electrochemical properties have been investigated in detail. Carbon cloth-supported LMO/MnO electrode exhibits a specific capacitance of 260 F·g(−1) at a current density of 0.5 A·g(−1) in 0.5 M Na(2)SO(4) aqueous electrolyte solution. The cooperative effects of LMO and MnO, as well as the uniform nano-array morphology contribute to the good electrochemical performance. In addition, a symmetric supercapacitor with a wide voltage window of 2 V is fabricated, showing a high energy density of 28.15 Wh·kg(−1) at a power density of 745 W·kg(−1). The specific capacitance drops to 65% retention after the first 500 cycles due to the element leaching effect and partial flaking of LMO/MnO, yet remains stable until 5000 cycles. It is the first time that La-based perovskite has been exploited for flexible supercapacitor applications, and further optimization is expected.
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spelling pubmed-69562802020-01-23 Flexible Supercapacitor Electrodes Based on Carbon Cloth-Supported LaMnO(3)/MnO Nano-Arrays by One-Step Electrodeposition Ma, Pianpian Lei, Na Yu, Bo Liu, Yongkun Jiang, Guohua Dai, Jianming Li, Shuhong Lu, Qiuling Nanomaterials (Basel) Article La-based perovskite-type oxide is a new type of supercapacitor electrode material with great potential. In the present study, LaMnO(3)/MnO (LMO/MnO) nano-arrays supported by carbon cloth are prepared via a simple one-step electrodeposition as flexible supercapacitor electrodes. The structure, deposit morphology of LMO/MnO, and the corresponding electrochemical properties have been investigated in detail. Carbon cloth-supported LMO/MnO electrode exhibits a specific capacitance of 260 F·g(−1) at a current density of 0.5 A·g(−1) in 0.5 M Na(2)SO(4) aqueous electrolyte solution. The cooperative effects of LMO and MnO, as well as the uniform nano-array morphology contribute to the good electrochemical performance. In addition, a symmetric supercapacitor with a wide voltage window of 2 V is fabricated, showing a high energy density of 28.15 Wh·kg(−1) at a power density of 745 W·kg(−1). The specific capacitance drops to 65% retention after the first 500 cycles due to the element leaching effect and partial flaking of LMO/MnO, yet remains stable until 5000 cycles. It is the first time that La-based perovskite has been exploited for flexible supercapacitor applications, and further optimization is expected. MDPI 2019-11-24 /pmc/articles/PMC6956280/ /pubmed/31771280 http://dx.doi.org/10.3390/nano9121676 Text en © 2019 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ma, Pianpian
Lei, Na
Yu, Bo
Liu, Yongkun
Jiang, Guohua
Dai, Jianming
Li, Shuhong
Lu, Qiuling
Flexible Supercapacitor Electrodes Based on Carbon Cloth-Supported LaMnO(3)/MnO Nano-Arrays by One-Step Electrodeposition
title Flexible Supercapacitor Electrodes Based on Carbon Cloth-Supported LaMnO(3)/MnO Nano-Arrays by One-Step Electrodeposition
title_full Flexible Supercapacitor Electrodes Based on Carbon Cloth-Supported LaMnO(3)/MnO Nano-Arrays by One-Step Electrodeposition
title_fullStr Flexible Supercapacitor Electrodes Based on Carbon Cloth-Supported LaMnO(3)/MnO Nano-Arrays by One-Step Electrodeposition
title_full_unstemmed Flexible Supercapacitor Electrodes Based on Carbon Cloth-Supported LaMnO(3)/MnO Nano-Arrays by One-Step Electrodeposition
title_short Flexible Supercapacitor Electrodes Based on Carbon Cloth-Supported LaMnO(3)/MnO Nano-Arrays by One-Step Electrodeposition
title_sort flexible supercapacitor electrodes based on carbon cloth-supported lamno(3)/mno nano-arrays by one-step electrodeposition
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6956280/
https://www.ncbi.nlm.nih.gov/pubmed/31771280
http://dx.doi.org/10.3390/nano9121676
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