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All-Solid-State Flexible Asymmetric Supercapacitor with Good Cycling Performance and Ultra-Power Density by Electrode Materials of Core-Shell CoNiO(2)@NiAl-Layered Double Hydroxide and Hollow Spherical α-Fe(2)O(3)
High electrochemical performance of asymmetric supercapacitor (ASC) depends on exquisite nanostructure design and synthesis of electrodes, including structural controllable design and synthesis of high theoretical performance materials and nanocomposite materials. Herein, a template-free hierarchica...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer US
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6419639/ https://www.ncbi.nlm.nih.gov/pubmed/30868362 http://dx.doi.org/10.1186/s11671-019-2910-5 |
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author | Zhang, Jijun Chen, Zexiang Wang, Yan Yan, Xinyu Zhou, Zhiyu Lv, Huifang |
author_facet | Zhang, Jijun Chen, Zexiang Wang, Yan Yan, Xinyu Zhou, Zhiyu Lv, Huifang |
author_sort | Zhang, Jijun |
collection | PubMed |
description | High electrochemical performance of asymmetric supercapacitor (ASC) depends on exquisite nanostructure design and synthesis of electrodes, including structural controllable design and synthesis of high theoretical performance materials and nanocomposite materials. Herein, a template-free hierarchical core-shell nanostructure of CoNiO(2)@NiAl-layered double hydroxide (NiAl-LDH) and α-Fe(2)O(3) with a hollow spherical structure composed of nanoparticles are successfully prepared. The CoNiO(2)@NiAl-LDH as the cathode electrode and the hollow spherical α-Fe(2)O(3) as the anode electrode of the ASC devices exhibit superior electrochemical performance. The gel of polyvinyl alcohol (PVA) and KOH acts as the solid electrolyte and the separator to assemble into the all-solid-state flexible ASC devices. Two of the CoNiO(2)@NiAl-LDH//α-Fe(2)O(3) ASC devices in series are fabricated to meet the voltage requirement of mobile energy equipment, which exhibit a maximum energy density of 65.68 Wh kg(−1) at the power density of 369.45 W kg(−1). Interestingly, in addition to many advantages that the solid electrolyte in ASC devices already have, we find that it can be an alternative way of solving the problem of iron oxide cycling performance, and of course it can also be used as a reference for other materials with poor cycling performance. |
format | Online Article Text |
id | pubmed-6419639 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Springer US |
record_format | MEDLINE/PubMed |
spelling | pubmed-64196392019-04-05 All-Solid-State Flexible Asymmetric Supercapacitor with Good Cycling Performance and Ultra-Power Density by Electrode Materials of Core-Shell CoNiO(2)@NiAl-Layered Double Hydroxide and Hollow Spherical α-Fe(2)O(3) Zhang, Jijun Chen, Zexiang Wang, Yan Yan, Xinyu Zhou, Zhiyu Lv, Huifang Nanoscale Res Lett Nano Express High electrochemical performance of asymmetric supercapacitor (ASC) depends on exquisite nanostructure design and synthesis of electrodes, including structural controllable design and synthesis of high theoretical performance materials and nanocomposite materials. Herein, a template-free hierarchical core-shell nanostructure of CoNiO(2)@NiAl-layered double hydroxide (NiAl-LDH) and α-Fe(2)O(3) with a hollow spherical structure composed of nanoparticles are successfully prepared. The CoNiO(2)@NiAl-LDH as the cathode electrode and the hollow spherical α-Fe(2)O(3) as the anode electrode of the ASC devices exhibit superior electrochemical performance. The gel of polyvinyl alcohol (PVA) and KOH acts as the solid electrolyte and the separator to assemble into the all-solid-state flexible ASC devices. Two of the CoNiO(2)@NiAl-LDH//α-Fe(2)O(3) ASC devices in series are fabricated to meet the voltage requirement of mobile energy equipment, which exhibit a maximum energy density of 65.68 Wh kg(−1) at the power density of 369.45 W kg(−1). Interestingly, in addition to many advantages that the solid electrolyte in ASC devices already have, we find that it can be an alternative way of solving the problem of iron oxide cycling performance, and of course it can also be used as a reference for other materials with poor cycling performance. Springer US 2019-03-11 /pmc/articles/PMC6419639/ /pubmed/30868362 http://dx.doi.org/10.1186/s11671-019-2910-5 Text en © The Author(s). 2019 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 | Nano Express Zhang, Jijun Chen, Zexiang Wang, Yan Yan, Xinyu Zhou, Zhiyu Lv, Huifang All-Solid-State Flexible Asymmetric Supercapacitor with Good Cycling Performance and Ultra-Power Density by Electrode Materials of Core-Shell CoNiO(2)@NiAl-Layered Double Hydroxide and Hollow Spherical α-Fe(2)O(3) |
title | All-Solid-State Flexible Asymmetric Supercapacitor with Good Cycling Performance and Ultra-Power Density by Electrode Materials of Core-Shell CoNiO(2)@NiAl-Layered Double Hydroxide and Hollow Spherical α-Fe(2)O(3) |
title_full | All-Solid-State Flexible Asymmetric Supercapacitor with Good Cycling Performance and Ultra-Power Density by Electrode Materials of Core-Shell CoNiO(2)@NiAl-Layered Double Hydroxide and Hollow Spherical α-Fe(2)O(3) |
title_fullStr | All-Solid-State Flexible Asymmetric Supercapacitor with Good Cycling Performance and Ultra-Power Density by Electrode Materials of Core-Shell CoNiO(2)@NiAl-Layered Double Hydroxide and Hollow Spherical α-Fe(2)O(3) |
title_full_unstemmed | All-Solid-State Flexible Asymmetric Supercapacitor with Good Cycling Performance and Ultra-Power Density by Electrode Materials of Core-Shell CoNiO(2)@NiAl-Layered Double Hydroxide and Hollow Spherical α-Fe(2)O(3) |
title_short | All-Solid-State Flexible Asymmetric Supercapacitor with Good Cycling Performance and Ultra-Power Density by Electrode Materials of Core-Shell CoNiO(2)@NiAl-Layered Double Hydroxide and Hollow Spherical α-Fe(2)O(3) |
title_sort | all-solid-state flexible asymmetric supercapacitor with good cycling performance and ultra-power density by electrode materials of core-shell conio(2)@nial-layered double hydroxide and hollow spherical α-fe(2)o(3) |
topic | Nano Express |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6419639/ https://www.ncbi.nlm.nih.gov/pubmed/30868362 http://dx.doi.org/10.1186/s11671-019-2910-5 |
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