Enhancing performance of lower-temperature solid oxide fuel cell cathodes through surface engineering: A review

Progress in Materials Science, Journal Year: 2024, Volume and Issue: 147, P. 101353 - 101353

Published: Aug. 13, 2024

Language: Английский

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In Situ Exsolved Mangosteen‐Type Nanoalloy Clusters and Engineered Heterogeneous Interfaces for High‐Performance Fuel‐Flexible Solid Oxide Cells

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 28, 2025

Abstract The development of high‐performance fuel electrodes exhibiting exceptional catalytic activity and flexibility remains a critical challenge for advancing solid oxide cells (SOCs). However, current Ni‐YSZ cermet or suffer from either poor limited electrochemical activity. This study presents novel strategy creating heterogeneous interfaces through the first‐reported exsolution mangosteen‐type FeRu nanoalloy clusters Sr 1.9 Fe 1.5 Mo 0.43 Ru 0.07 O 6‐δ (Ru‐SFM0.07‐1.9) electrodes. combination clusters, oxygen vacancies, significantly enhances by providing more sites reducing activation energy C─H bond cleavage. Concurrently, formation vacancies improves resistance to carbon deposition flexibility. SOC with Ru‐SFM0.07‐1.9 electrode achieves peak power densities (P max ) 1.79, 1.54, 1.36, 1.13 W cm −2 under H 2 , naphtha, propane, methane at 850 °C in cell (FC) mode, respectively. While it exhibits 3.29 A 1.6 V CO electrolysis (EC) mode. These results demonstrate that construction is promising enhance both SOCs.

Language: Английский

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Development of Nanostructured Lanthanum Strontium Cobalt Ferrite/Gadolinian-Doped Ceria Composite Electrodes of Solid Oxide Cells Formed by In Situ Polarization

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(17), P. 21818 - 21827

Published: April 17, 2024

In the development of nanoscale oxygen electrodes high-temperature solid oxide cells (SOCs), interface formed between nanoelectrode particles and electrolyte or scaffolds is most critical. this work, a new synthesis technique for fabrication nanostructured via in situ electrochemical polarization treatment reported. The lanthanum strontium cobalt ferrite (LSCF) precursor solution infiltrated into gadolinia-doped ceria (GDC) scaffold presintered on yttria-stabilized zirconia (YSZ) electrolyte, followed by current at SOC operation temperatures. Electrode ohmic resistances decrease with an increase treatment. Detailed microstructure analysis indicates formation convex-shaped LSCF nanoparticles (NPs) GDC scaffold, very different from flat contact observed after heating 800 °C no embedded NPs contribute to superior stability under both fuel cell electrolysis conditions 750 high peak power density 1.58 W cm–2 °C. This work highlights novel facile route construct stable high-performing electrode SOCs.

Language: Английский

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Exploring Al doped ZnO for the oxygen electrode of reversible solid oxide electrochemical cells

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 101, P. 1201 - 1208

Published: Jan. 7, 2025

Language: Английский

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Research progress on fuel assisted solid oxide electrolysis cells

Journal of Fuel Chemistry and Technology, Journal Year: 2025, Volume and Issue: 53(2), P. 183 - 197

Published: Jan. 26, 2025

Language: Английский

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In‐Situ Exsolved Metal Nanoparticles for Solid Oxide Fuel Cell Anode: Mechanism, Design Strategies and Application

Chinese Journal of Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 25, 2025

Comprehensive Summary Solid oxide fuel cell (SOFC) is recognized as the third‐generation which transforms chemical energy of different fuels directly into electrical with highly efficient. However, sulfur poisoning and carbon deposition at high temperatures anode side hindered its commercialization. Using perovskite anodes combined in‐situ exsolution (ISE) method has been extensively developed aimed alleviating above problems. This review trying to depict a systematic overview mechanism ISE process, strategies for designing ISE, application in SOFC anodes. We hope that this work could give comprehensive understanding future SOFC. Key Scientists

Language: Английский

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Ba-containing ferrites, Pr1–xBaxFeO3–δ, as symmetrical electrodes and their functional properties in both oxidizing and reducing atmospheres

Ceramics International, Journal Year: 2024, Volume and Issue: 50(20), P. 40417 - 40428

Published: Feb. 7, 2024

Language: Английский

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Transport properties and phase stability of Ni-doped Pr0.6Ba0.4FeO3–δ as potential symmetrical electrodes for proton-conducting electrochemical cells

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 91, P. 16 - 28

Published: Oct. 13, 2024

Language: Английский

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Toward Advanced Fuel Electrodes for High‐Performance Proton‐Conducting Ceramic Cells

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 12, 2024

Abstract Proton‐conducting ceramic cells (PCCs), which include proton‐conducting fuel (PCFCs) and electrolysis (PCECs), have attracted significant attention as high‐efficiency eco‐friendly technologies for energy conversion. As compared with the impressive progress made in air electrode electrolyte materials, electrodes received much less due to faster reaction kinetics lower polarization. Nevertheless, design optimization of is also critical toward further electrochemical performance improvement, especially when extended from hydrogen ammonia hydrocarbons PCFCs. Herein, recent research on strategies PCCs overviewed, including impregnation strategy, exsolution addition catalytic layers, structure. Finally, perspectives challenges facing development advanced are presented.

Language: Английский

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Influence of the La0.2Sr0.7Ti0.95Ni0.05O3 (LSTN) Synthesis Method on SOFC Anode Performance

Catalysts, Journal Year: 2024, Volume and Issue: 14(1), P. 79 - 79

Published: Jan. 18, 2024

Solid oxide fuel cells are characterized by a high efficiency for converting chemical energy into electricity and flexibility. This research work focuses on developing durable efficient anodes solid (SOFCs) based exsolving nickel from the perovskite structure. A-site-deficient La- Ni-doped strontium titanates (La0.2Sr0.7Ti0.95Ni0.05O3−δ, LSTN) were synthesized using four different techniques mixed with Ce0.8Gd0.2O2−δ (GDC) to form SOFC anode. The synthesis routes of interest comparison included solid-state, sol-gel, hydrothermal, co-precipitation methods. LSTN powders via XRD, SEM, TPR, BET XPS. In situ XRD during reduction was measured reduced analyzed TEM. impact route performance investigated. All samples highly when kept at 0.5 V 48 h 800 °C H2 fuel. Interestingly, best observed cell anode prepared co-precipitation, while conventional solid-state method only achieved second-best results.

Language: Английский

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