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Tin Oxide/Vertically Aligned Graphene Hybrid Electrodes Prepared by Sonication-Assisted Sequential Chemical Bath Deposition for High-Performance Supercapacitors

[Image: see text] Hybrid electrodes comprising metal oxides and vertically aligned graphene (VAG) are promising for high-performance supercapacitor applications because they enhance the synergistic effect owing to the large contact area between the two constituent materials. However, it is difficult...

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Autores principales: Lee, Na Eun, Cheon, Seung Uk, Lee, Jaewoo, Cho, Sung Oh
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2023
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9948212/
https://www.ncbi.nlm.nih.gov/pubmed/36844528
http://dx.doi.org/10.1021/acsomega.2c07075
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author Lee, Na Eun
Cheon, Seung Uk
Lee, Jaewoo
Cho, Sung Oh
author_facet Lee, Na Eun
Cheon, Seung Uk
Lee, Jaewoo
Cho, Sung Oh
author_sort Lee, Na Eun
collection PubMed
description [Image: see text] Hybrid electrodes comprising metal oxides and vertically aligned graphene (VAG) are promising for high-performance supercapacitor applications because they enhance the synergistic effect owing to the large contact area between the two constituent materials. However, it is difficult to form metal oxides (MOs) up to the inner surface of a VAG electrode with a narrow inlet using conventional synthesis methods. Herein, we report a facile approach to fabricate SnO(2) nanoparticle-decorated VAG electrodes (SnO(2)@VAG) with excellent areal capacitance and cyclic stability using sonication-assisted sequential chemical bath deposition (S-SCBD). The sonication treatment during the MO decoration process induced a cavitation effect at the narrow inlet of the VAG electrode, allowing the precursor solution to reach the inside of the VAG surface. Furthermore, the sonication treatment promoted MO nucleation on the entire VAG surface. Thus, the SnO(2) nanoparticles uniformly covered the entire electrode surface after the S-SCBD process. SnO(2)@VAG exhibited an outstanding areal capacitance (4.40 F cm(–2)) up to 58% higher than that of VAG electrodes. The symmetric supercapacitor with SnO(2)@VAG electrodes showed an excellent areal capacitance (2.13 F cm(–2)) and a cyclic stability of 90% after 2000 cycles. These results suggest a new avenue for sonication-assisted fabrication of hybrid electrodes in the field of energy storage.
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spelling pubmed-99482122023-02-24 Tin Oxide/Vertically Aligned Graphene Hybrid Electrodes Prepared by Sonication-Assisted Sequential Chemical Bath Deposition for High-Performance Supercapacitors Lee, Na Eun Cheon, Seung Uk Lee, Jaewoo Cho, Sung Oh ACS Omega [Image: see text] Hybrid electrodes comprising metal oxides and vertically aligned graphene (VAG) are promising for high-performance supercapacitor applications because they enhance the synergistic effect owing to the large contact area between the two constituent materials. However, it is difficult to form metal oxides (MOs) up to the inner surface of a VAG electrode with a narrow inlet using conventional synthesis methods. Herein, we report a facile approach to fabricate SnO(2) nanoparticle-decorated VAG electrodes (SnO(2)@VAG) with excellent areal capacitance and cyclic stability using sonication-assisted sequential chemical bath deposition (S-SCBD). The sonication treatment during the MO decoration process induced a cavitation effect at the narrow inlet of the VAG electrode, allowing the precursor solution to reach the inside of the VAG surface. Furthermore, the sonication treatment promoted MO nucleation on the entire VAG surface. Thus, the SnO(2) nanoparticles uniformly covered the entire electrode surface after the S-SCBD process. SnO(2)@VAG exhibited an outstanding areal capacitance (4.40 F cm(–2)) up to 58% higher than that of VAG electrodes. The symmetric supercapacitor with SnO(2)@VAG electrodes showed an excellent areal capacitance (2.13 F cm(–2)) and a cyclic stability of 90% after 2000 cycles. These results suggest a new avenue for sonication-assisted fabrication of hybrid electrodes in the field of energy storage. American Chemical Society 2023-02-08 /pmc/articles/PMC9948212/ /pubmed/36844528 http://dx.doi.org/10.1021/acsomega.2c07075 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Lee, Na Eun
Cheon, Seung Uk
Lee, Jaewoo
Cho, Sung Oh
Tin Oxide/Vertically Aligned Graphene Hybrid Electrodes Prepared by Sonication-Assisted Sequential Chemical Bath Deposition for High-Performance Supercapacitors
title Tin Oxide/Vertically Aligned Graphene Hybrid Electrodes Prepared by Sonication-Assisted Sequential Chemical Bath Deposition for High-Performance Supercapacitors
title_full Tin Oxide/Vertically Aligned Graphene Hybrid Electrodes Prepared by Sonication-Assisted Sequential Chemical Bath Deposition for High-Performance Supercapacitors
title_fullStr Tin Oxide/Vertically Aligned Graphene Hybrid Electrodes Prepared by Sonication-Assisted Sequential Chemical Bath Deposition for High-Performance Supercapacitors
title_full_unstemmed Tin Oxide/Vertically Aligned Graphene Hybrid Electrodes Prepared by Sonication-Assisted Sequential Chemical Bath Deposition for High-Performance Supercapacitors
title_short Tin Oxide/Vertically Aligned Graphene Hybrid Electrodes Prepared by Sonication-Assisted Sequential Chemical Bath Deposition for High-Performance Supercapacitors
title_sort tin oxide/vertically aligned graphene hybrid electrodes prepared by sonication-assisted sequential chemical bath deposition for high-performance supercapacitors
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9948212/
https://www.ncbi.nlm.nih.gov/pubmed/36844528
http://dx.doi.org/10.1021/acsomega.2c07075
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