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Nanostrucutured MnO(2)-TiN nanotube arrays for advanced supercapacitor electrode material

The capacitance of MnO(2) supercapacitors (SCs) is not high as expected due to its low conductivity of MnO(2). The synergistic effects of MnO(2) with high theoretical specific capacitance and TiN with high theoretical conductivity can extremely enhance the electrochemical performance of the MnO(2)-T...

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Autores principales: Ren, Peng, Chen, Chao, Yang, Xiuchun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8826938/
https://www.ncbi.nlm.nih.gov/pubmed/35136101
http://dx.doi.org/10.1038/s41598-022-05167-1
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author Ren, Peng
Chen, Chao
Yang, Xiuchun
author_facet Ren, Peng
Chen, Chao
Yang, Xiuchun
author_sort Ren, Peng
collection PubMed
description The capacitance of MnO(2) supercapacitors (SCs) is not high as expected due to its low conductivity of MnO(2). The synergistic effects of MnO(2) with high theoretical specific capacitance and TiN with high theoretical conductivity can extremely enhance the electrochemical performance of the MnO(2)-TiN electrode material. In this work, we synthesized different nanostructured and crystalline-structured MnO(2) modified TiN nanotube arrays electrode materials by hydrothermal method and explained the formation mechanism of different nanostructured and crystalline-structured MnO(2.) The influences of MnO(2) nanostructures and crystalline-structures on the electrochemical performance has been contrasted and discussed. The specific capacitance of δ-MnO(2) nanosheets-TiN nanotube arrays can reach 689.88 F g(−1), the highest value among these samples TN-MO-SS, TN-MO-S, TN-MO-SR, TN-MO-RS, and TN-MO-R. The reason is explained based on MnO(2) nanostructure and crystalline-structure and electron/ion transport properties. The specific capacitance retention rates are 97.2% and 82.4% of initial capacitance after 100 and 500 cycles, respectively, indicating an excellent charging-discharging cycle stability.
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spelling pubmed-88269382022-02-10 Nanostrucutured MnO(2)-TiN nanotube arrays for advanced supercapacitor electrode material Ren, Peng Chen, Chao Yang, Xiuchun Sci Rep Article The capacitance of MnO(2) supercapacitors (SCs) is not high as expected due to its low conductivity of MnO(2). The synergistic effects of MnO(2) with high theoretical specific capacitance and TiN with high theoretical conductivity can extremely enhance the electrochemical performance of the MnO(2)-TiN electrode material. In this work, we synthesized different nanostructured and crystalline-structured MnO(2) modified TiN nanotube arrays electrode materials by hydrothermal method and explained the formation mechanism of different nanostructured and crystalline-structured MnO(2.) The influences of MnO(2) nanostructures and crystalline-structures on the electrochemical performance has been contrasted and discussed. The specific capacitance of δ-MnO(2) nanosheets-TiN nanotube arrays can reach 689.88 F g(−1), the highest value among these samples TN-MO-SS, TN-MO-S, TN-MO-SR, TN-MO-RS, and TN-MO-R. The reason is explained based on MnO(2) nanostructure and crystalline-structure and electron/ion transport properties. The specific capacitance retention rates are 97.2% and 82.4% of initial capacitance after 100 and 500 cycles, respectively, indicating an excellent charging-discharging cycle stability. Nature Publishing Group UK 2022-02-08 /pmc/articles/PMC8826938/ /pubmed/35136101 http://dx.doi.org/10.1038/s41598-022-05167-1 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Ren, Peng
Chen, Chao
Yang, Xiuchun
Nanostrucutured MnO(2)-TiN nanotube arrays for advanced supercapacitor electrode material
title Nanostrucutured MnO(2)-TiN nanotube arrays for advanced supercapacitor electrode material
title_full Nanostrucutured MnO(2)-TiN nanotube arrays for advanced supercapacitor electrode material
title_fullStr Nanostrucutured MnO(2)-TiN nanotube arrays for advanced supercapacitor electrode material
title_full_unstemmed Nanostrucutured MnO(2)-TiN nanotube arrays for advanced supercapacitor electrode material
title_short Nanostrucutured MnO(2)-TiN nanotube arrays for advanced supercapacitor electrode material
title_sort nanostrucutured mno(2)-tin nanotube arrays for advanced supercapacitor electrode material
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8826938/
https://www.ncbi.nlm.nih.gov/pubmed/35136101
http://dx.doi.org/10.1038/s41598-022-05167-1
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AT chenchao nanostrucuturedmno2tinnanotubearraysforadvancedsupercapacitorelectrodematerial
AT yangxiuchun nanostrucuturedmno2tinnanotubearraysforadvancedsupercapacitorelectrodematerial