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Magnetic field alignment of stable proton-conducting channels in an electrolyte membrane
Proton exchange membranes with short-pathway through-plane orientated proton conductivity are highly desirable for use in proton exchange membrane fuel cells. Magnetic field is utilized to create oriented structure in proton exchange membranes. Previously, this has only been carried out by proton no...
Autores principales: | , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6381100/ https://www.ncbi.nlm.nih.gov/pubmed/30783091 http://dx.doi.org/10.1038/s41467-019-08622-2 |
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author | Liu, Xin Li, Yi Xue, Jiandang Zhu, Weikang Zhang, Junfeng Yin, Yan Qin, Yanzhou Jiao, Kui Du, Qing Cheng, Bowen Zhuang, Xupin Li, Jianxin Guiver, Michael D. |
author_facet | Liu, Xin Li, Yi Xue, Jiandang Zhu, Weikang Zhang, Junfeng Yin, Yan Qin, Yanzhou Jiao, Kui Du, Qing Cheng, Bowen Zhuang, Xupin Li, Jianxin Guiver, Michael D. |
author_sort | Liu, Xin |
collection | PubMed |
description | Proton exchange membranes with short-pathway through-plane orientated proton conductivity are highly desirable for use in proton exchange membrane fuel cells. Magnetic field is utilized to create oriented structure in proton exchange membranes. Previously, this has only been carried out by proton nonconductive metal oxide-based fillers. Here, under a strong magnetic field, a proton-conducting paramagnetic complex based on ferrocyanide-coordinated polymer and phosphotungstic acid is used to prepare composite membranes with highly conductive through-plane-aligned proton channels. Gratifyingly, this strategy simultaneously overcomes the high water-solubility of phosphotungstic acid in composite membranes, thereby preventing its leaching and the subsequent loss of membrane conductivity. The ferrocyanide groups in the coordinated polymer, via redox cycle, can continuously consume free radicals, thus helping to improve the long-term in situ membrane durability. The composite membranes exhibit outstanding proton conductivity, fuel cell performance and durability, compared with other types of hydrocarbon membranes and industry standard Nafion(®) 212. |
format | Online Article Text |
id | pubmed-6381100 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-63811002019-02-21 Magnetic field alignment of stable proton-conducting channels in an electrolyte membrane Liu, Xin Li, Yi Xue, Jiandang Zhu, Weikang Zhang, Junfeng Yin, Yan Qin, Yanzhou Jiao, Kui Du, Qing Cheng, Bowen Zhuang, Xupin Li, Jianxin Guiver, Michael D. Nat Commun Article Proton exchange membranes with short-pathway through-plane orientated proton conductivity are highly desirable for use in proton exchange membrane fuel cells. Magnetic field is utilized to create oriented structure in proton exchange membranes. Previously, this has only been carried out by proton nonconductive metal oxide-based fillers. Here, under a strong magnetic field, a proton-conducting paramagnetic complex based on ferrocyanide-coordinated polymer and phosphotungstic acid is used to prepare composite membranes with highly conductive through-plane-aligned proton channels. Gratifyingly, this strategy simultaneously overcomes the high water-solubility of phosphotungstic acid in composite membranes, thereby preventing its leaching and the subsequent loss of membrane conductivity. The ferrocyanide groups in the coordinated polymer, via redox cycle, can continuously consume free radicals, thus helping to improve the long-term in situ membrane durability. The composite membranes exhibit outstanding proton conductivity, fuel cell performance and durability, compared with other types of hydrocarbon membranes and industry standard Nafion(®) 212. Nature Publishing Group UK 2019-02-19 /pmc/articles/PMC6381100/ /pubmed/30783091 http://dx.doi.org/10.1038/s41467-019-08622-2 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as 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. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Liu, Xin Li, Yi Xue, Jiandang Zhu, Weikang Zhang, Junfeng Yin, Yan Qin, Yanzhou Jiao, Kui Du, Qing Cheng, Bowen Zhuang, Xupin Li, Jianxin Guiver, Michael D. Magnetic field alignment of stable proton-conducting channels in an electrolyte membrane |
title | Magnetic field alignment of stable proton-conducting channels in an electrolyte membrane |
title_full | Magnetic field alignment of stable proton-conducting channels in an electrolyte membrane |
title_fullStr | Magnetic field alignment of stable proton-conducting channels in an electrolyte membrane |
title_full_unstemmed | Magnetic field alignment of stable proton-conducting channels in an electrolyte membrane |
title_short | Magnetic field alignment of stable proton-conducting channels in an electrolyte membrane |
title_sort | magnetic field alignment of stable proton-conducting channels in an electrolyte membrane |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6381100/ https://www.ncbi.nlm.nih.gov/pubmed/30783091 http://dx.doi.org/10.1038/s41467-019-08622-2 |
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