Enhancing capacitance behaviour of CoOOH nanostructures using transition metal dopants by ambient oxidation

Cobalt hydrate and doped binary Co(0.9)M(0.1)OOH (M = Ni, Mn, Fe) nanorings of 100–300 nm were fabricated in solution through a facile ambient oxidation method. A transformation from Co(0.9)Ni(0.1)(OH)(2) nanodiscs to hollow Co(0.9)Ni(0.1)OOH nanorings was observed with prolonged reaction time. Core...

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Autores principales: Chen, Yanhui, Zhou, Junfeng, Maguire, Pierce, O’Connell, Robert, Schmitt, Wolfgang, Li, Yonghe, Yan, Zhengguang, Zhang, Yuefei, Zhang, Hongzhou
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4745070/
https://www.ncbi.nlm.nih.gov/pubmed/26853105
http://dx.doi.org/10.1038/srep20704
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author Chen, Yanhui
Zhou, Junfeng
Maguire, Pierce
O’Connell, Robert
Schmitt, Wolfgang
Li, Yonghe
Yan, Zhengguang
Zhang, Yuefei
Zhang, Hongzhou
author_facet Chen, Yanhui
Zhou, Junfeng
Maguire, Pierce
O’Connell, Robert
Schmitt, Wolfgang
Li, Yonghe
Yan, Zhengguang
Zhang, Yuefei
Zhang, Hongzhou
author_sort Chen, Yanhui
collection PubMed
description Cobalt hydrate and doped binary Co(0.9)M(0.1)OOH (M = Ni, Mn, Fe) nanorings of 100–300 nm were fabricated in solution through a facile ambient oxidation method. A transformation from Co(0.9)Ni(0.1)(OH)(2) nanodiscs to hollow Co(0.9)Ni(0.1)OOH nanorings was observed with prolonged reaction time. Core-shell nanodiscs have elemental segregation with a Co(OH)(2) core and Ni(OH)(2) shell. Co(0.9)Ni(0.1)OOH nanorings displayed a higher electrochemical capacitance than Mn and Fe doped nanorings materials or materials with disc-like geometries.
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spelling pubmed-47450702016-02-16 Enhancing capacitance behaviour of CoOOH nanostructures using transition metal dopants by ambient oxidation Chen, Yanhui Zhou, Junfeng Maguire, Pierce O’Connell, Robert Schmitt, Wolfgang Li, Yonghe Yan, Zhengguang Zhang, Yuefei Zhang, Hongzhou Sci Rep Article Cobalt hydrate and doped binary Co(0.9)M(0.1)OOH (M = Ni, Mn, Fe) nanorings of 100–300 nm were fabricated in solution through a facile ambient oxidation method. A transformation from Co(0.9)Ni(0.1)(OH)(2) nanodiscs to hollow Co(0.9)Ni(0.1)OOH nanorings was observed with prolonged reaction time. Core-shell nanodiscs have elemental segregation with a Co(OH)(2) core and Ni(OH)(2) shell. Co(0.9)Ni(0.1)OOH nanorings displayed a higher electrochemical capacitance than Mn and Fe doped nanorings materials or materials with disc-like geometries. Nature Publishing Group 2016-02-08 /pmc/articles/PMC4745070/ /pubmed/26853105 http://dx.doi.org/10.1038/srep20704 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Chen, Yanhui
Zhou, Junfeng
Maguire, Pierce
O’Connell, Robert
Schmitt, Wolfgang
Li, Yonghe
Yan, Zhengguang
Zhang, Yuefei
Zhang, Hongzhou
Enhancing capacitance behaviour of CoOOH nanostructures using transition metal dopants by ambient oxidation
title Enhancing capacitance behaviour of CoOOH nanostructures using transition metal dopants by ambient oxidation
title_full Enhancing capacitance behaviour of CoOOH nanostructures using transition metal dopants by ambient oxidation
title_fullStr Enhancing capacitance behaviour of CoOOH nanostructures using transition metal dopants by ambient oxidation
title_full_unstemmed Enhancing capacitance behaviour of CoOOH nanostructures using transition metal dopants by ambient oxidation
title_short Enhancing capacitance behaviour of CoOOH nanostructures using transition metal dopants by ambient oxidation
title_sort enhancing capacitance behaviour of coooh nanostructures using transition metal dopants by ambient oxidation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4745070/
https://www.ncbi.nlm.nih.gov/pubmed/26853105
http://dx.doi.org/10.1038/srep20704
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