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Pulsed laser deposition of BaCo0.4Fe0.4Zr0.1Y0.1O3-δ cathode for solid oxide fuel cells
摘要： We herein report a thin film deposition of perovskite BaCo0.4Fe0.4Zr0.1Y0.1O3-δ (BCFZY) by pulsed laser depositing (PLD) method for the use as a cathode in solid oxide fuel cells (SOFCs). The BCFZY powder was first synthesized via sol-gel method and pelletized to use it as a target in PLD system. As a result, the PLD-deposited thin film showed nano-porous morphology, preferred nano-architecture for cathode in SOFCs, without generating or transforming to secondary phase. The applicability of the thin film BCFZY to SOFC cathode was even confirmed by fabricating an SOFC with BCFZY cathode and operating it at 500 °C, where stable open-circuit voltage of 1.13 V was measured for an hour.
关键词： Pulsed laser deposition,Oxygen reduction reaction,thin film,Solid oxide fuel cells,BCFZY
更新于2025-09-23 15:22:29
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Electrical and Mechanical Properties of CeO2-Based Thin-Film Coatings Obtained by Electrophoretic Deposition
摘要： Nanometer Ce0.8(Sm0.75Sr0.20Ba0.05)0.2O2 – δ powder with mean nanoparticle size of 15 nm has been obtained by laser evaporation of a solid-phase target followed by condensation. The nanopowder has been used to prepare suspensions for electrophoretic deposition in a mixed isopropanol : acetyl acetone = 50 : 50 vol % disperse medium offering the unique property of self-stabilization. Optimal conditions for electrophoretic deposition have been found, and uniform thin-film electrolytic coatings have been formed on a La2NiO4 cathodic carrier substrate (12–15% porosity). It has been shown that the resulting electrolyte offers a high adhesivity and has, after sintering at 1400°C, a compact granular structure with grains from 1 to 8 μ m in size. The conductivity of the 2-μ m-thick electrolyte equals 0.1 S/cm at 650°C.
关键词： solid oxide fuel cells,nanopowder,electrophoretic deposition,conductivity,CeO2-based thin-film coatings
更新于2025-09-09 09:28:46