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Asymmetric supercapacitors with high energy density based on helical hierarchical porous Na(x)MnO(2) and MoO(2)

Helical hierarchical porous Na(x)MnO(2)/CC and MoO(2)/CC, which are assembled from nanosheets and nanoparticles, respectively, are fabricated using a simple electrodeposition method. These unique helical porous structures enable electrodes to have a high capacitance and an outstanding cycling perfor...

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Detalles Bibliográficos
Autores principales: Lu, Xue-Feng, Huang, Zhi-Xiang, Tong, Ye-Xiang, Li, Gao-Ren
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Royal Society of Chemistry 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5519956/
https://www.ncbi.nlm.nih.gov/pubmed/28791103
http://dx.doi.org/10.1039/c5sc03326h
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author Lu, Xue-Feng
Huang, Zhi-Xiang
Tong, Ye-Xiang
Li, Gao-Ren
author_facet Lu, Xue-Feng
Huang, Zhi-Xiang
Tong, Ye-Xiang
Li, Gao-Ren
author_sort Lu, Xue-Feng
collection PubMed
description Helical hierarchical porous Na(x)MnO(2)/CC and MoO(2)/CC, which are assembled from nanosheets and nanoparticles, respectively, are fabricated using a simple electrodeposition method. These unique helical porous structures enable electrodes to have a high capacitance and an outstanding cycling performance. Based on the helical Na(x)MnO(2)/CC as the positive electrodes and helical MoO(2)/CC as the negative electrodes, high performance Na(x)MnO(2)/CC//MoO(2)/CC asymmetric supercapacitors (ASCs) are successfully assembled, and they achieve a maximum volume C (sp) of 2.04 F cm(–3) and a maximum energy density of 0.92 mW h cm(–3) for the whole device and an excellent cycling stability with 97.22% C (sp) retention after 6000 cycles.
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spelling pubmed-55199562017-08-08 Asymmetric supercapacitors with high energy density based on helical hierarchical porous Na(x)MnO(2) and MoO(2) Lu, Xue-Feng Huang, Zhi-Xiang Tong, Ye-Xiang Li, Gao-Ren Chem Sci Chemistry Helical hierarchical porous Na(x)MnO(2)/CC and MoO(2)/CC, which are assembled from nanosheets and nanoparticles, respectively, are fabricated using a simple electrodeposition method. These unique helical porous structures enable electrodes to have a high capacitance and an outstanding cycling performance. Based on the helical Na(x)MnO(2)/CC as the positive electrodes and helical MoO(2)/CC as the negative electrodes, high performance Na(x)MnO(2)/CC//MoO(2)/CC asymmetric supercapacitors (ASCs) are successfully assembled, and they achieve a maximum volume C (sp) of 2.04 F cm(–3) and a maximum energy density of 0.92 mW h cm(–3) for the whole device and an excellent cycling stability with 97.22% C (sp) retention after 6000 cycles. Royal Society of Chemistry 2016-01-01 2015-10-07 /pmc/articles/PMC5519956/ /pubmed/28791103 http://dx.doi.org/10.1039/c5sc03326h Text en This journal is © The Royal Society of Chemistry 2015 http://creativecommons.org/licenses/by-nc/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial 3.0 Unported License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Chemistry
Lu, Xue-Feng
Huang, Zhi-Xiang
Tong, Ye-Xiang
Li, Gao-Ren
Asymmetric supercapacitors with high energy density based on helical hierarchical porous Na(x)MnO(2) and MoO(2)
title Asymmetric supercapacitors with high energy density based on helical hierarchical porous Na(x)MnO(2) and MoO(2)
title_full Asymmetric supercapacitors with high energy density based on helical hierarchical porous Na(x)MnO(2) and MoO(2)
title_fullStr Asymmetric supercapacitors with high energy density based on helical hierarchical porous Na(x)MnO(2) and MoO(2)
title_full_unstemmed Asymmetric supercapacitors with high energy density based on helical hierarchical porous Na(x)MnO(2) and MoO(2)
title_short Asymmetric supercapacitors with high energy density based on helical hierarchical porous Na(x)MnO(2) and MoO(2)
title_sort asymmetric supercapacitors with high energy density based on helical hierarchical porous na(x)mno(2) and moo(2)
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5519956/
https://www.ncbi.nlm.nih.gov/pubmed/28791103
http://dx.doi.org/10.1039/c5sc03326h
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