Current and further trajectories in designing functional materials for solid oxide electrochemical cells: A review of other reviews

Journal of Energy Chemistry, Год журнала: 2024, Номер 94, С. 302 - 331

Опубликована: Март 8, 2024

Язык: Английский

---

Electrocatalysis in Solid Oxide Fuel Cells and Electrolyzers

Chemical Reviews, Год журнала: 2024, Номер 124(13), С. 8233 - 8306

Опубликована: Июнь 17, 2024

Interest in energy-to-X and X-to-energy (where X represents green hydrogen, carbon-based fuels, or ammonia) technologies has expanded the field of electrochemical conversion storage. Solid oxide cells (SOCs) are among most promising for these processes. Their unmatched efficiencies result from favorable thermodynamics kinetics at elevated operating temperatures (400-900 °C). These solid-state systems exhibit flexibility reversible operation between fuel cell electrolysis modes can efficiently utilize a variety fuels. However, electrocatalytic materials SOC electrodes remain nonoptimal facilitating flexibility. In this Review, we explore diverse range utilized oxygen-ion-conducting SOCs (O-SOCs) proton-conducting (H-SOCs). We examine their activity as function composition structure across different reactions to highlight characteristics that lead optimal catalytic performance. Catalyst deactivation mechanisms under conditions discussed assess bottlenecks conclude by providing guidelines evaluating performance electrode catalysts designing effective achieve usage mode operation.

Язык: Английский

---

Engineering dual-exsolution on self-assembled cathode to achieve efficient electrocatalytic CO2 reduction

Applied Catalysis B Environment and Energy, Год журнала: 2023, Номер 337, С. 122968 - 122968

Опубликована: Июнь 7, 2023

Язык: Английский

---

Triggering electrode multi-catalytic activity for reversible symmetric solid oxide cells by Pt-doping lanthanum strontium ferrite

Chemical Engineering Journal, Год журнала: 2023, Номер 471, С. 144448 - 144448

Опубликована: Июнь 28, 2023

Among the up-and-coming technologies, reversible solid oxide cells (r-SOCs) represent a highly efficient way to store and convert energy using single device. The interchangeability between SOFC SOEC operation is key aspect, though for its technological advancement development of performing, versatile robust electrodes must be pursued. A multi-purpose catalyst would allow design symmetric cell (r-SSOC), greatly reducing fabrication maintenance costs. However, such flexible electrode material comply with requirements both SOC electrodes, namely ensuring high performance in wide pO2 range: catalytic activity towards fuel oxidation H2O/CO2 reduction, electronic ionic conductivity, long-term stability, tolerance carbon deposition. In this work, platinum doping at B-site lanthanum strontium ferrite (LSFPt) endowed parent perovskite superior versatility, making it able operate as oxygen exchange well material. 5-mol% Pt inclusion enhanced ORR/OER activity, lowering LSF area-specific resistance by 29% approaching state-of-the-art LSCF performance. After Pt-Fe finely distributed exsolution provided catalytically active sites. LSFPt-symmetric H2-SOFCs CO2-SOECs, displayed 720 mW∙cm−2 power density 1.66 A·cm−2 current 1.6 V, respectively, 850 °C. Endurance tests on LSFPt-based r-SSOCs demonstrated remarkably stable SOFC/SOEC cyclability steady output over 370 h 50:50 CO2:CO

Язык: Английский

---

Chemistry and electrochemistry of CeO₂-based interlayers: Prolonging the lifetime of solid oxide fuel and electrolysis cells

Russian Chemical Reviews, Год журнала: 2023, Номер 92(10), С. RCR5097 - RCR5097

Опубликована: Авг. 28, 2023

Research and development of solid oxide fuel cells (SOFCs) electrolysis (SOECs) are currently paramount importance in terms realizing hydrogen energy carbon emission reduction programs, which many countries have committed to. Although, there outstanding results the fabrication characterization SOFCs SOECs with promising oxygen-ionic proton-conducting electrolytes, conventional zirconia electrolytes still widely used not only a lab-scale setup, but also form enlarged stacks, experimental operation latter during 10 000–100 000 h. To ensure good performance stability microstructural integrity such multilayered cells, special attention should be paid to chemical activity functional materials toward their interaction each other, especially long-term focus. The literature analysis has shown that undesirable processes occur classical pairs strontium-containing electrodes, including element segregation interdiffusion, insulating phase formation, microscopic defect appearance, delamination. Some these can efficiently eliminated by using so-called interlayers designed from doped ceria materials. Due numerous beneficial functions, several synonymous names: blocking, barrier, buffer, or protecting layers. Herein, we review recent progress achievements fundamental applied researches dealing impact on chemistry electrochemistry based as well analogs. <br> bibliography includes 405 references.

Язык: Английский

---

Advancements and prospects of perovskite-based fuel electrodes in solid oxide cells for CO₂ electrolysis to CO

Chemical Science, Год журнала: 2024, Номер 15(29), С. 11166 - 11187

Опубликована: Янв. 1, 2024

Developments and prospects for solid oxide cells using a perovskite-based fuel electrode CO 2 electrolysis to CO.

Язык: Английский

---

Copper-Enhanced CO₂ Electroreduction in SOECs

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(7), С. 8842 - 8852

Опубликована: Фев. 9, 2024

The development of a Co-free and Ni-free electrocatalyst for carbon dioxide electrolysis would be turning point the large-scale commercialization solid-oxide cells (CO2–SOECs). Indeed, demand cobalt nickel is expected to become critical by 2050 due automotive electrification. Currently, reference materials CO2–SOEC electrodes are perovskite oxides containing Mn or Co (anodes) Ni-YSZ cermets (cathodes). However, issues need addressed, such as structural degradation and/or deposition at cathode side, especially high overpotentials. This work designs 20 mol % replacement iron copper in La0.6Sr0.4FeO3−δ multipurpose electrode CO2–SOECs. La0.6Sr0.4Fe0.8Cu0.2O3−δ (LSFCu) synthesized solution combustion method, partial substitution with evaluated X-ray powder diffraction Rietveld refinement, photoelectron spectroscopy, thermogravimetric analyses, electrical conductivity assessment. LSFCu tested SOEC anode measuring area-specific resistance versus T pO2. structural, electrical, electrocatalytic properties also assessed pure CO2 cathodic application. Finally, proof concept symmetric LSFCu-based 850 °C, revealing current density value 1.5 V 1.22 A/cm2, which remarkable when compared similar Ni- Co-containing systems.

Язык: Английский

---

Robust Cathode for Efficient CO₂ Electrolysis Driven by Entropy Engineering in Solid Oxide Electrolysis Cells

ACS Energy Letters, Год журнала: 2024, Номер 9(8), С. 3818 - 3827

Опубликована: Июль 12, 2024

Язык: Английский

---

Review on CO₂ Management: From CO₂ Sources, Capture, and Conversion to Future Perspectives of Gas-Phase Electrochemical Conversion and Utilization

Energy & Fuels, Год журнала: 2024, Номер 38(4), С. 2708 - 2742

Опубликована: Фев. 6, 2024

Fossil organic chemicals are the main resources for both energy demands and industrial chemistry. Burning or decomposing of these materials releases carbon dioxide (CO2) monoxide (CO), causing global environmental changes. This issue is concern related to current earth situation. It could be a critical task that excess CO2 captured converted into original resources. In this overview, origin withdrawing mechanism thermodynamics, kinetics, pathway reduction reaction summarized, then methods briefly compared with respect commercialization capability. Electrochemistry known as green cost-effective technique, which motivates many chemical reactions in technological areas. Conversion intrinsic assisted by electrochemistry an imperative subject terms demand greenhouse gas control. However, some drawbacks such less dissolution aqueous electrolytes low selectivity products decrease efficiency recycling use electrochemical procedures. Next, recent trends development electrocatalysts various factors reviewed. After that, challenges liquid-phase insights gas-phase diffusion electrode (GDE) summarized. Taking account techno-economic analysis, future GDE conversion new advanced procedures toward improving stability high faradaic discussed. Finally, brief discussion about Li/CO2 batteries H2/CO2 fuel cells combined CO2/H2O electrolysis management utilization presented.

Язык: Английский

---

The development of solid oxide electrolysis cells: Critical materials, technologies and prospects

Journal of Power Sources, Год журнала: 2024, Номер 607, С. 234608 - 234608

Опубликована: Апрель 30, 2024

Язык: Английский

---