Ceramics International, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 1, 2024
Language: Английский
Advanced Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 5, 2025
Abstract Reversible protonic ceramic cells (R‐PCCs) are at the forefront of electrochemical conversion devices, capable reversibly and efficiently converting chemical energy into electricity intermediate temperatures (350–700 °C) with zero carbon emissions. However, slow surface catalytic reactions air‐electrode often hinder their performance durability. The electrode is not merely an extension bulk structure, equilibrium reconstruction can lead to significantly different crystal‐plane terminations morphologies, which influenced by material's intrinsic properties external reaction conditions. Understanding evolution elevated in water‐containing, oxidative atmospheres presents significant importance. In this review, a comprehensive summary recent processes applying advanced characterization techniques for high‐temperature surfaces provided, exploring correlations between fluctuations examining structural various associated degradation activation phenomena, offering insights impact on performance. Furthermore, reported strategies advances enhancing R‐PCCs through engineering discussed. This review offers valuable expected guide future developments catalysis, solid‐state ionics, materials.
Language: Английский
Citations
2
Small, Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 4, 2024
Abstract Solid oxide fuel cells (SOFCs) are considered as advanced energy conversion technologies due to the high efficiency, flexibility, and all‐solid structure. Nevertheless, their widespread applications strongly hindered by operational temperatures, limited material selection choices, inferior long‐term stability, relatively costs. Therefore, reducing temperatures of SOFCs intermediate‐temperature (IT, 500–800 °C) range can remarkably promote practical enabling use low‐cost materials enhancing cell stability. conventional cathodes for high‐temperature display electrocatalytic activity oxygen reduction reaction (ORR) at reduced temperatures. Barium cobaltite (BaCoO 3‐δ )‐based perovskite oxides regarded promising IT‐SOFCs because free lattice volume large vacancy content. However, BaCoO ‐based suffer from poor structural thermal compatibility, insufficient ionic conductivity. Herein, an in‐time review about recent advances in is presented emphasizing design strategies including functional/selectively doping, deficiency control, (nano)composite construction enhance ORR activity/durability compatibility. Finally, currently existed challenges future research trends presented. This will provide valuable insights development electrocatalysts various conversion/storage technologies.
Language: Английский
Citations
7
Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 17, 2025
Abstract Reversible protonic ceramic cells (r‐PCCs) are highly attractive energy storage and conversion technology, while the insufficient activity of state‐of‐the‐art air electrodes at reduced temperatures strongly limits their practical applications. Herein, this work reports a reduction/re‐oxidation strategy to design new efficient, durable nanocomposite electrode for boosting performance r‐PCCs operated intermediate temperatures. Specifically, single‐phase Ba(Co 0.4 Fe Zr 0.1 Y ) 0.9 Ni O 3‐δ perovskite is selected as precursor, its treatment in hydrogen atmosphere 450 °C then re‐oxidation leads formation nanocomposite, consisted perovskite‐based main phase BaCoO NiO secondary‐phase nanoparticles, where facilitates oxygen surface exchange nanoparticles promote oxygen/steam adsorption. The corresponding r‐PCC exhibits superior 550 symmetrical cell (0.162 Ω cm 2 ), single fuel (0.690 W −2 an electrolysis (−1.066 A 1.3 V). Such thermodynamically stable offers better thermomechanical compatibility with electrolyte because thermal expansion coefficient. As result, durability both modes demonstrated. This study paves way designing outstanding great application potential.
Language: Английский
Citations
0
Advanced Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 24, 2025
Protonic ceramic fuel cells (PCFCs) offer a promising avenue for sustainable energy conversion, however, their commercial potential is hindered by sluggish proton-involved oxygen reduction reaction (P-ORR) kinetics and inadequate durability of cathode materials. Here, novel single-atom Ru anchor on BaCe0.125Fe0.875O3-δ (BCF) perovskite, synthesized facile scalable solid-state approach, as PCFCs reported. Theoretical experimental analyses demonstrate that the BCF, characterized unique 4-coordinate Ru-O-Fe configuration, not only induces reverse hydrogen spillover but also acts an active site P-ORR. The application optimized 2Ru-BCF (2 wt.% Ru) in single cell delivers exceptional peak power density 1.78 W cm-2 at 700 °C, along with excellent operational stability over 200 h. These findings provide new insights into engineering, advancing viability PCFCs.
Language: Английский
Citations
0
Materials Science and Engineering B, Journal Year: 2025, Volume and Issue: 317, P. 118188 - 118188
Published: March 4, 2025
Language: Английский
Citations
0
ACS Energy Letters, Journal Year: 2025, Volume and Issue: unknown, P. 1874 - 1883
Published: March 25, 2025
Language: Английский
Citations
0
Ceramics International, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 1, 2024
Language: Английский
Citations
0