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A Hybrid Electrode of Co(3)O(4)@PPy Core/Shell Nanosheet Arrays for High-Performance Supercapacitors

Herein, combining solverthermal route and electrodeposition, we grew unique hybrid nanosheet arrays consisting of Co(3)O(4) nanosheet as a core, PPy as a shell. Benefiting from the PPy as conducting polymer improving an electron transport rate as well as synergistic effects from such a core/shell st...

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Detalles Bibliográficos
Autores principales: Yang, Xiaojun, Xu, Kaibing, Zou, Rujia, Hu, Junqing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6223670/
https://www.ncbi.nlm.nih.gov/pubmed/30460274
http://dx.doi.org/10.1007/s40820-015-0069-x
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author Yang, Xiaojun
Xu, Kaibing
Zou, Rujia
Hu, Junqing
author_facet Yang, Xiaojun
Xu, Kaibing
Zou, Rujia
Hu, Junqing
author_sort Yang, Xiaojun
collection PubMed
description Herein, combining solverthermal route and electrodeposition, we grew unique hybrid nanosheet arrays consisting of Co(3)O(4) nanosheet as a core, PPy as a shell. Benefiting from the PPy as conducting polymer improving an electron transport rate as well as synergistic effects from such a core/shell structure, a hybrid electrode made of the Co(3)O(4)@PPy core/shell nanosheet arrays exhibits a large areal capacitance of 2.11 F cm(−2) at the current density of 2 mA cm(−2), a ~4-fold enhancement compared with the pristine Co(3)O(4) electrode; furthermore, this hybrid electrode also displays good rate capability (~65 % retention of the initial capacitance from 2 to 20 mA cm(−2)) and superior cycling performance (~85.5 % capacitance retention after 5000 cycles). In addition, the equivalent series resistance value of the Co(3)O(4)@PPy hybrid electrode (0.238 Ω) is significantly lower than that of the pristine Co(3)O(4) electrode (0.319 Ω). These results imply that the Co(3)O(4)@PPy hybrid composites have a potential for fabricating next-generation energy storage and conversion devices. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s40820-015-0069-x) contains supplementary material, which is available to authorized users.
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spelling pubmed-62236702018-11-18 A Hybrid Electrode of Co(3)O(4)@PPy Core/Shell Nanosheet Arrays for High-Performance Supercapacitors Yang, Xiaojun Xu, Kaibing Zou, Rujia Hu, Junqing Nanomicro Lett Article Herein, combining solverthermal route and electrodeposition, we grew unique hybrid nanosheet arrays consisting of Co(3)O(4) nanosheet as a core, PPy as a shell. Benefiting from the PPy as conducting polymer improving an electron transport rate as well as synergistic effects from such a core/shell structure, a hybrid electrode made of the Co(3)O(4)@PPy core/shell nanosheet arrays exhibits a large areal capacitance of 2.11 F cm(−2) at the current density of 2 mA cm(−2), a ~4-fold enhancement compared with the pristine Co(3)O(4) electrode; furthermore, this hybrid electrode also displays good rate capability (~65 % retention of the initial capacitance from 2 to 20 mA cm(−2)) and superior cycling performance (~85.5 % capacitance retention after 5000 cycles). In addition, the equivalent series resistance value of the Co(3)O(4)@PPy hybrid electrode (0.238 Ω) is significantly lower than that of the pristine Co(3)O(4) electrode (0.319 Ω). These results imply that the Co(3)O(4)@PPy hybrid composites have a potential for fabricating next-generation energy storage and conversion devices. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s40820-015-0069-x) contains supplementary material, which is available to authorized users. Springer Berlin Heidelberg 2015-10-15 2016 /pmc/articles/PMC6223670/ /pubmed/30460274 http://dx.doi.org/10.1007/s40820-015-0069-x Text en © The Author(s) 2015 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Article
Yang, Xiaojun
Xu, Kaibing
Zou, Rujia
Hu, Junqing
A Hybrid Electrode of Co(3)O(4)@PPy Core/Shell Nanosheet Arrays for High-Performance Supercapacitors
title A Hybrid Electrode of Co(3)O(4)@PPy Core/Shell Nanosheet Arrays for High-Performance Supercapacitors
title_full A Hybrid Electrode of Co(3)O(4)@PPy Core/Shell Nanosheet Arrays for High-Performance Supercapacitors
title_fullStr A Hybrid Electrode of Co(3)O(4)@PPy Core/Shell Nanosheet Arrays for High-Performance Supercapacitors
title_full_unstemmed A Hybrid Electrode of Co(3)O(4)@PPy Core/Shell Nanosheet Arrays for High-Performance Supercapacitors
title_short A Hybrid Electrode of Co(3)O(4)@PPy Core/Shell Nanosheet Arrays for High-Performance Supercapacitors
title_sort hybrid electrode of co(3)o(4)@ppy core/shell nanosheet arrays for high-performance supercapacitors
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6223670/
https://www.ncbi.nlm.nih.gov/pubmed/30460274
http://dx.doi.org/10.1007/s40820-015-0069-x
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