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Highly efficient and robust cathode materials for low-temperature solid oxide fuel cells: PrBa(0.5)Sr(0.5)Co(2−x)Fe(x)O(5+δ)

Solid oxide fuel cells (SOFC) are the cleanest, most efficient, and cost-effective option for direct conversion to electricity of a wide variety of fuels. While significant progress has been made in anode materials with enhanced tolerance to coking and contaminant poisoning, cathodic polarization st...

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Autores principales: Choi, Sihyuk, Yoo, Seonyoung, Kim, Jiyoun, Park, Seonhye, Jun, Areum, Sengodan, Sivaprakash, Kim, Junyoung, Shin, Jeeyoung, Jeong, Hu Young, Choi, YongMan, Kim, Guntae, Liu, Meilin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3744084/
https://www.ncbi.nlm.nih.gov/pubmed/23945630
http://dx.doi.org/10.1038/srep02426
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author Choi, Sihyuk
Yoo, Seonyoung
Kim, Jiyoun
Park, Seonhye
Jun, Areum
Sengodan, Sivaprakash
Kim, Junyoung
Shin, Jeeyoung
Jeong, Hu Young
Choi, YongMan
Kim, Guntae
Liu, Meilin
author_facet Choi, Sihyuk
Yoo, Seonyoung
Kim, Jiyoun
Park, Seonhye
Jun, Areum
Sengodan, Sivaprakash
Kim, Junyoung
Shin, Jeeyoung
Jeong, Hu Young
Choi, YongMan
Kim, Guntae
Liu, Meilin
author_sort Choi, Sihyuk
collection PubMed
description Solid oxide fuel cells (SOFC) are the cleanest, most efficient, and cost-effective option for direct conversion to electricity of a wide variety of fuels. While significant progress has been made in anode materials with enhanced tolerance to coking and contaminant poisoning, cathodic polarization still contributes considerably to energy loss, more so at lower operating temperatures. Here we report a synergistic effect of co-doping in a cation-ordered double-perovskite material, PrBa(0.5)Sr(0.5)Co(2−x)Fe(x)O(5+δ), which has created pore channels that dramatically enhance oxygen ion diffusion and surface oxygen exchange while maintaining excellent compatibility and stability under operating conditions. Test cells based on these cathode materials demonstrate peak power densities ~2.2 W cm(−2) at 600°C, representing an important step toward commercially viable SOFC technologies.
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spelling pubmed-37440842013-08-16 Highly efficient and robust cathode materials for low-temperature solid oxide fuel cells: PrBa(0.5)Sr(0.5)Co(2−x)Fe(x)O(5+δ) Choi, Sihyuk Yoo, Seonyoung Kim, Jiyoun Park, Seonhye Jun, Areum Sengodan, Sivaprakash Kim, Junyoung Shin, Jeeyoung Jeong, Hu Young Choi, YongMan Kim, Guntae Liu, Meilin Sci Rep Article Solid oxide fuel cells (SOFC) are the cleanest, most efficient, and cost-effective option for direct conversion to electricity of a wide variety of fuels. While significant progress has been made in anode materials with enhanced tolerance to coking and contaminant poisoning, cathodic polarization still contributes considerably to energy loss, more so at lower operating temperatures. Here we report a synergistic effect of co-doping in a cation-ordered double-perovskite material, PrBa(0.5)Sr(0.5)Co(2−x)Fe(x)O(5+δ), which has created pore channels that dramatically enhance oxygen ion diffusion and surface oxygen exchange while maintaining excellent compatibility and stability under operating conditions. Test cells based on these cathode materials demonstrate peak power densities ~2.2 W cm(−2) at 600°C, representing an important step toward commercially viable SOFC technologies. Nature Publishing Group 2013-08-15 /pmc/articles/PMC3744084/ /pubmed/23945630 http://dx.doi.org/10.1038/srep02426 Text en Copyright © 2013, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-nd/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/
spellingShingle Article
Choi, Sihyuk
Yoo, Seonyoung
Kim, Jiyoun
Park, Seonhye
Jun, Areum
Sengodan, Sivaprakash
Kim, Junyoung
Shin, Jeeyoung
Jeong, Hu Young
Choi, YongMan
Kim, Guntae
Liu, Meilin
Highly efficient and robust cathode materials for low-temperature solid oxide fuel cells: PrBa(0.5)Sr(0.5)Co(2−x)Fe(x)O(5+δ)
title Highly efficient and robust cathode materials for low-temperature solid oxide fuel cells: PrBa(0.5)Sr(0.5)Co(2−x)Fe(x)O(5+δ)
title_full Highly efficient and robust cathode materials for low-temperature solid oxide fuel cells: PrBa(0.5)Sr(0.5)Co(2−x)Fe(x)O(5+δ)
title_fullStr Highly efficient and robust cathode materials for low-temperature solid oxide fuel cells: PrBa(0.5)Sr(0.5)Co(2−x)Fe(x)O(5+δ)
title_full_unstemmed Highly efficient and robust cathode materials for low-temperature solid oxide fuel cells: PrBa(0.5)Sr(0.5)Co(2−x)Fe(x)O(5+δ)
title_short Highly efficient and robust cathode materials for low-temperature solid oxide fuel cells: PrBa(0.5)Sr(0.5)Co(2−x)Fe(x)O(5+δ)
title_sort highly efficient and robust cathode materials for low-temperature solid oxide fuel cells: prba(0.5)sr(0.5)co(2−x)fe(x)o(5+δ)
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3744084/
https://www.ncbi.nlm.nih.gov/pubmed/23945630
http://dx.doi.org/10.1038/srep02426
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