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Design of flexible polyphenylene proton-conducting membrane for next-generation fuel cells

Proton exchange membrane fuel cells (PEMFCs) are promising devices for clean power generation in automotive, stationary, and portable applications. Perfluorosulfonic acid (PFSA) ionomers (for example, Nafion) have been the benchmark PEMs; however, several problems, including high gas permeability, l...

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Autores principales: Miyake, Junpei, Taki, Ryunosuke, Mochizuki, Takashi, Shimizu, Ryo, Akiyama, Ryo, Uchida, Makoto, Miyatake, Kenji
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5656417/
https://www.ncbi.nlm.nih.gov/pubmed/29075671
http://dx.doi.org/10.1126/sciadv.aao0476
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author Miyake, Junpei
Taki, Ryunosuke
Mochizuki, Takashi
Shimizu, Ryo
Akiyama, Ryo
Uchida, Makoto
Miyatake, Kenji
author_facet Miyake, Junpei
Taki, Ryunosuke
Mochizuki, Takashi
Shimizu, Ryo
Akiyama, Ryo
Uchida, Makoto
Miyatake, Kenji
author_sort Miyake, Junpei
collection PubMed
description Proton exchange membrane fuel cells (PEMFCs) are promising devices for clean power generation in automotive, stationary, and portable applications. Perfluorosulfonic acid (PFSA) ionomers (for example, Nafion) have been the benchmark PEMs; however, several problems, including high gas permeability, low thermal stability, high production cost, and environmental incompatibility, limit the widespread dissemination of PEMFCs. It is believed that fluorine-free PEMs can potentially address all of these issues; however, none of these membranes have simultaneously met the criteria for both high performance (for example, proton conductivity) and durability (for example, mechanical and chemical stability). We present a polyphenylene-based PEM (SPP-QP) that fulfills the required properties for fuel cell applications. The newly designed PEM exhibits very high proton conductivity, excellent membrane flexibility, low gas permeability, and extremely high stability, with negligible degradation even under accelerated degradation conditions, which has never been achieved with existing fluorine-free PEMs. The polyphenylene PEM also exhibits reasonably high fuel cell performance, with excellent durability under practical conditions. This new PEM extends the limits of existing fluorine-free proton-conductive materials and will help to realize the next generation of PEMFCs via cost reduction as well as the performance improvement compared to the present PFSA-based PEMFC systems.
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spelling pubmed-56564172017-10-26 Design of flexible polyphenylene proton-conducting membrane for next-generation fuel cells Miyake, Junpei Taki, Ryunosuke Mochizuki, Takashi Shimizu, Ryo Akiyama, Ryo Uchida, Makoto Miyatake, Kenji Sci Adv Research Articles Proton exchange membrane fuel cells (PEMFCs) are promising devices for clean power generation in automotive, stationary, and portable applications. Perfluorosulfonic acid (PFSA) ionomers (for example, Nafion) have been the benchmark PEMs; however, several problems, including high gas permeability, low thermal stability, high production cost, and environmental incompatibility, limit the widespread dissemination of PEMFCs. It is believed that fluorine-free PEMs can potentially address all of these issues; however, none of these membranes have simultaneously met the criteria for both high performance (for example, proton conductivity) and durability (for example, mechanical and chemical stability). We present a polyphenylene-based PEM (SPP-QP) that fulfills the required properties for fuel cell applications. The newly designed PEM exhibits very high proton conductivity, excellent membrane flexibility, low gas permeability, and extremely high stability, with negligible degradation even under accelerated degradation conditions, which has never been achieved with existing fluorine-free PEMs. The polyphenylene PEM also exhibits reasonably high fuel cell performance, with excellent durability under practical conditions. This new PEM extends the limits of existing fluorine-free proton-conductive materials and will help to realize the next generation of PEMFCs via cost reduction as well as the performance improvement compared to the present PFSA-based PEMFC systems. American Association for the Advancement of Science 2017-10-25 /pmc/articles/PMC5656417/ /pubmed/29075671 http://dx.doi.org/10.1126/sciadv.aao0476 Text en Copyright © 2017 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). http://creativecommons.org/licenses/by-nc/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (http://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.
spellingShingle Research Articles
Miyake, Junpei
Taki, Ryunosuke
Mochizuki, Takashi
Shimizu, Ryo
Akiyama, Ryo
Uchida, Makoto
Miyatake, Kenji
Design of flexible polyphenylene proton-conducting membrane for next-generation fuel cells
title Design of flexible polyphenylene proton-conducting membrane for next-generation fuel cells
title_full Design of flexible polyphenylene proton-conducting membrane for next-generation fuel cells
title_fullStr Design of flexible polyphenylene proton-conducting membrane for next-generation fuel cells
title_full_unstemmed Design of flexible polyphenylene proton-conducting membrane for next-generation fuel cells
title_short Design of flexible polyphenylene proton-conducting membrane for next-generation fuel cells
title_sort design of flexible polyphenylene proton-conducting membrane for next-generation fuel cells
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5656417/
https://www.ncbi.nlm.nih.gov/pubmed/29075671
http://dx.doi.org/10.1126/sciadv.aao0476
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