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

Progress in Materials Science, Год журнала: 2024, Номер 147, С. 101353 - 101353

Опубликована: Авг. 13, 2024

Язык: 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, Год журнала: 2024, Номер 16(17), С. 21818 - 21827

Опубликована: Апрель 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.

Язык: 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, Год журнала: 2024, Номер 91, С. 16 - 28

Опубликована: Окт. 13, 2024

Язык: Английский

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

Advanced Energy Materials, Год журнала: 2024, Номер unknown

Опубликована: Дек. 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.

Язык: Английский

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

International Journal of Hydrogen Energy, Год журнала: 2025, Номер 101, С. 1201 - 1208

Опубликована: Янв. 7, 2025

Язык: Английский

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Research progress on fuel assisted solid oxide electrolysis cells

Journal of Fuel Chemistry and Technology, Год журнала: 2025, Номер 53(2), С. 183 - 197

Опубликована: Янв. 26, 2025

Язык: 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, Год журнала: 2025, Номер unknown

Опубликована: Фев. 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.

Язык: 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, Год журнала: 2025, Номер unknown

Опубликована: Апрель 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

Язык: 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, Год журнала: 2024, Номер 50(20), С. 40417 - 40428

Опубликована: Фев. 7, 2024

Язык: Английский

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

Catalysts, Год журнала: 2024, Номер 14(1), С. 79 - 79

Опубликована: Янв. 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.

Язык: Английский

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