High Power SOFC Using LSGM Film on NiFe Porous Bi-metal Substrate
High Power SOFC Using LSGM Film on NiFe Porous Bi-metal Substrate
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DOI：
10.1149/1.3205587
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发表时间：
2009-09
期刊：
影响因子：
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通讯作者：
Young-Wan Ju;H. Eto;T. Inagaki;T. Ishihara
中科院分区：
文献类型：
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作者：
Young-Wan Ju;H. Eto;T. Inagaki;T. Ishihara
采用脉冲激光沉积（PLD）方法在NiOFe2O3双金属基底上制备了Sr和Mg掺杂的LaGaO3（LSGM）薄膜。研究了不同烧结温度下的基底制备条件，以优化表面光滑致密圆盘的制备条件。通过热还原，基底变成多孔Ni-Fe金属基底。还研究了不同还原温度下基材的体积收缩率和孔隙率，对于多孔金属基材，合适的还原温度为973 K。通过最佳沉积参数和靶材成分成功制备了化学计量成分的LSGM薄膜。在 1073 K 退火 2 小时期间，沉积薄膜的结构从非晶态转变为晶态钙钛矿。 Sm0。 5Sr0。采用浆料涂覆法制备了5CoO3作为正极。在多孔 Ni-Fe 金属基底上，最大功率密度 (MPD) 在 973 K 和 873 K 下分别达到 1.6 和 0.9 W/cm2。即使在 673 K 下，MPD 也达到 0.1 W/cm2。
Sr and Mg doped LaGaO3 (LSGM) thin film was prepared on NiOFe2O3 bi-metal substrate by Pulsed Laser Deposition (PLD) method. Substrate preparation conditions were studied at different sintering temperatures in order to optimize the preparation condition for dense disk with smooth surface. By the thermal reduction, the substrate was changed to a porous Ni-Fe metal substrate. The volumetric shrinkage and porosity of the substrate were also studied at different reduction temperatures and a suitable reduction temperature exists at 973 K for porous metal substrate. Stoichiometric composition of LSGM film was successfully prepared by optimal deposition parameter and target composition. Structure of the deposited film changed from amorphous to crystalline perovskite during annealing at 1073 K for 2 h. Sm0. 5Sr0. 5CoO3 was prepared as cathode by slurry coating method. The maximum power density (MPD) achieved a value of 1.6 and 0.9 W/cm2 at 973 and 873 K, respectively, on porous Ni-Fe metal substrate. Even at 673 K, MPD of 0.1 W/cm2 was achieved.