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250903s2025 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202512257
|2 doi
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|a pubmed25n1554.xml
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|a (DE-627)NLM391738429
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|a (NLM)40855958
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Yao, Yuechao
|e verfasserin
|4 aut
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|a In Situ Construction of a High-Entropy Perovskite Based Tri-Phase Composite Electrode toward Efficient Reversible Solid Oxide Cells
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|c 2025
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 26.08.2025
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a © 2025 Wiley‐VCH GmbH.
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|a Reversible solid oxide cells (R-SOCs) are promising for energy applications but face limitations due to poor durability and slow oxygen-reduction/evolution reactions at air electrodes. Here, a high-entropy perovskite-based (HEP) tri-phase composite, (La0.2Sr0.2Pr0.2Ba0.2Ce0.2)xCoO3-δ, comprising an A-site deficient La0.2Sr0.2Pr0.2Ba0.2Ce0.2CoO3-δ, doped-CeO2, and Co3O4 phases are presented. The HEP phase provides catalytic sites and robust frameworks, the doped-CeO2 phase enhances oxygen-ion transport; and the Co3O4 nanoparticles offer additional active sites. The optimized (La0.2Sr0.2Pr0.2Ba0.2Ce0.2)0.7CoO3-δ electrode exhibits promising electrochemical performance: a low area-specific resistance of 0.058 Ω cm2 at 700 °C and enhance stability (a 2-fold improvement in ambient air, a 6-fold enhancement in moisture resistance, and a 3-fold increase in Cr tolerance compare to (La0.6Sr0.4)0.95Co0.2Fe0.8O3- ). When applied as an air electrode for R-SOCs, it delivers excellent performance at 800 °C: a peak power density of 1.68 W cm-2 in fuel cell (FC); a current density of 1.5 A cm-2 at 1.2 V in electrolysis cell (EC). Significantly, this work represents the first application of a high-entropy-oxide-based material as an air electrode in large-area R-SOCs (10×10 cm2). The assembled R-SOC achieves an output of 61 W in FC and 66 A at 1.18 V in EC at 800 °C, highlighting its potential for practical applications
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|a Journal Article
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|a high‐entropy perovskite
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|a in situ construction
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|a reversible solid oxide cells
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|a tri‐phase composite electrode
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|a Feng, Jiangyuan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xu, Liangfei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Yan
|e verfasserin
|4 aut
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| 700 |
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|a Zhang, Weifeng
|e verfasserin
|4 aut
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|a Wang, Fuhuan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yan, Pengfei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Jun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hu, Qiang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhou, Yucun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Shaorong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Jianqiu
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g (2025) vom: 26. Aug., Seite e12257
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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| 773 |
1 |
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|g year:2025
|g day:26
|g month:08
|g pages:e12257
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|u http://dx.doi.org/10.1002/adma.202512257
|3 Volltext
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|a GBV_ILN_350
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|a AR
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|j 2025
|b 26
|c 08
|h e12257
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