Reverse Atom Capture on Perovskite Surface Enabling Robust and Efficient Cathode for Protonic Ceramic Fuel Cells

© 2024 Wiley‐VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 36(2024), 27 vom: 02. Juli, Seite e2405052
1. Verfasser: Zhao, Sunce (VerfasserIn)
Weitere Verfasser: Ma, Wenjia, Wang, Weiwei, Huang, Yonglong, Wang, Ji, Wang, Sijiao, Shu, Zhu, He, Beibei, Zhao, Ling
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article heterostructure proton involved oxygen reduction reaction protonic ceramic fuel cells reverse atom capture surface segregation
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520 |a Protonic ceramic fuel cells (PCFCs) hold potential for sustainable energy conversion, yet their widespread application is hindered by the sluggish kinetics and inferior stability of cathode materials. Here, a facile and efficient reverse atom capture technique is developed to manipulate the surface chemistry of PrBa0.5Sr0.5Co1.5Fe0.5O5+ δ (PBSCF) cathode for PCFCs. This method successfully captures segregated Ba and Sr cations on the PBSCF surface using W species, creating a (Ba/Sr)(Co/Fe/W)O3- δ (BSCFW)PBSCF heterostructure. Benefiting from enhanced kinetics of proton-involved oxygen reduction reaction and strengthened chemical stability, the single cell using the optimized 2W-PBSCF cathode demonstrates an exceptional peak power density of 1.32 W cm-2 at 650 °C and maintains durable performance for 240 h. Theoretical calculations unveil that the BSCFW perovskite delivers lower oxygen vacancy formation energy, hydration energy, and proton transfer energy compared to the PBSCF perovskite. This protocol offers new insights into advanced atom capture techniques for sustainable energy infrastructures 
650 4 |a Journal Article 
650 4 |a heterostructure 
650 4 |a proton involved oxygen reduction reaction 
650 4 |a protonic ceramic fuel cells 
650 4 |a reverse atom capture 
650 4 |a surface segregation 
700 1 |a Ma, Wenjia  |e verfasserin  |4 aut 
700 1 |a Wang, Weiwei  |e verfasserin  |4 aut 
700 1 |a Huang, Yonglong  |e verfasserin  |4 aut 
700 1 |a Wang, Ji  |e verfasserin  |4 aut 
700 1 |a Wang, Sijiao  |e verfasserin  |4 aut 
700 1 |a Shu, Zhu  |e verfasserin  |4 aut 
700 1 |a He, Beibei  |e verfasserin  |4 aut 
700 1 |a Zhao, Ling  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Advanced materials (Deerfield Beach, Fla.)  |d 1998  |g 36(2024), 27 vom: 02. Juli, Seite e2405052  |w (DE-627)NLM098206397  |x 1521-4095  |7 nnns 
773 1 8 |g volume:36  |g year:2024  |g number:27  |g day:02  |g month:07  |g pages:e2405052 
856 4 0 |u http://dx.doi.org/10.1002/adma.202405052  |3 Volltext 
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