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Effective single web–structured electrode for high membrane electrode assembly performance in polymer electrolyte membrane fuel cell

To achieve a sustainable society, CO(2) emissions must be reduced and efficiency of energy systems must be enhanced. The polymer electrolyte membrane fuel cell (PEMFC) has zero CO(2) emissions and high effectiveness for various applications. A well-designed membrane electrolyte assembly (MEA) compos...

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Autores principales: Ji, Yunseong, Kwon, Ohchan, Jeon, Ok Sung, Yim, Sungdae, Jeon, Yukwon, Shul, Yong-gun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10146897/
https://www.ncbi.nlm.nih.gov/pubmed/37115932
http://dx.doi.org/10.1126/sciadv.adf4863
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author Ji, Yunseong
Kwon, Ohchan
Jeon, Ok Sung
Yim, Sungdae
Jeon, Yukwon
Shul, Yong-gun
author_facet Ji, Yunseong
Kwon, Ohchan
Jeon, Ok Sung
Yim, Sungdae
Jeon, Yukwon
Shul, Yong-gun
author_sort Ji, Yunseong
collection PubMed
description To achieve a sustainable society, CO(2) emissions must be reduced and efficiency of energy systems must be enhanced. The polymer electrolyte membrane fuel cell (PEMFC) has zero CO(2) emissions and high effectiveness for various applications. A well-designed membrane electrolyte assembly (MEA) composed of electrode layers of effective materials and structure can alter the performance and durability of PEMFC. We demonstrate an efficient electrode deposition method through a well-designed carbon single web with a porous 3D web structure that can be commercially adopted. To achieve excellent electrochemical properties, active Pt nanoparticles are controlled by a nanoglue effect on a highly graphitized carbon surface. The developed MEA exhibits a notable maximum power density of 1082 mW/cm(2) at 80°C, H(2)/air, 50% RH, and 1.8 atm; low cathode loading of 0.1 mg(Pt)/cm(2); and catalytic performance decays of only 23.18 and 13.42% under commercial-based durability protocols, respectively, thereby achieving all desirables for commercial applications.
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spelling pubmed-101468972023-04-29 Effective single web–structured electrode for high membrane electrode assembly performance in polymer electrolyte membrane fuel cell Ji, Yunseong Kwon, Ohchan Jeon, Ok Sung Yim, Sungdae Jeon, Yukwon Shul, Yong-gun Sci Adv Physical and Materials Sciences To achieve a sustainable society, CO(2) emissions must be reduced and efficiency of energy systems must be enhanced. The polymer electrolyte membrane fuel cell (PEMFC) has zero CO(2) emissions and high effectiveness for various applications. A well-designed membrane electrolyte assembly (MEA) composed of electrode layers of effective materials and structure can alter the performance and durability of PEMFC. We demonstrate an efficient electrode deposition method through a well-designed carbon single web with a porous 3D web structure that can be commercially adopted. To achieve excellent electrochemical properties, active Pt nanoparticles are controlled by a nanoglue effect on a highly graphitized carbon surface. The developed MEA exhibits a notable maximum power density of 1082 mW/cm(2) at 80°C, H(2)/air, 50% RH, and 1.8 atm; low cathode loading of 0.1 mg(Pt)/cm(2); and catalytic performance decays of only 23.18 and 13.42% under commercial-based durability protocols, respectively, thereby achieving all desirables for commercial applications. American Association for the Advancement of Science 2023-04-28 /pmc/articles/PMC10146897/ /pubmed/37115932 http://dx.doi.org/10.1126/sciadv.adf4863 Text en Copyright © 2023 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). https://creativecommons.org/licenses/by-nc/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (https://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 Physical and Materials Sciences
Ji, Yunseong
Kwon, Ohchan
Jeon, Ok Sung
Yim, Sungdae
Jeon, Yukwon
Shul, Yong-gun
Effective single web–structured electrode for high membrane electrode assembly performance in polymer electrolyte membrane fuel cell
title Effective single web–structured electrode for high membrane electrode assembly performance in polymer electrolyte membrane fuel cell
title_full Effective single web–structured electrode for high membrane electrode assembly performance in polymer electrolyte membrane fuel cell
title_fullStr Effective single web–structured electrode for high membrane electrode assembly performance in polymer electrolyte membrane fuel cell
title_full_unstemmed Effective single web–structured electrode for high membrane electrode assembly performance in polymer electrolyte membrane fuel cell
title_short Effective single web–structured electrode for high membrane electrode assembly performance in polymer electrolyte membrane fuel cell
title_sort effective single web–structured electrode for high membrane electrode assembly performance in polymer electrolyte membrane fuel cell
topic Physical and Materials Sciences
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10146897/
https://www.ncbi.nlm.nih.gov/pubmed/37115932
http://dx.doi.org/10.1126/sciadv.adf4863
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