Surface decorated La 0.43 Ca 0.37 Ni 0.06 Ti 0.94 O 3− d (LCNT) perovskite oxide was investigated as an anode functional layer (AFL) for anode-supported solid oxide fuel cells (SOFCs). The surface exsolved Ni nano particles on LCNT scaffold enlarged electrochemically active triple phase boundaries (TPBs) without any agglomeration and mechanical failure. The Ni particles with 60 nm in diameter were homogeneously exsolved from LCNT perovskite. The Ni-YSZ anode supported cell with LCNT anode functional layer (AFL) exhibited a maximum power density of 0.94 W/cm 2 , similar to that of the conventional Ni-YSZ AFL cell at 900 °C. The activation polarization resistance of the LCNT AFL cell was effectively reduced compared to that of the Ni-YSZ AFL cell, though it had higher Ohmic resistance due to thicker YSZ electrolyte and lower electrical conductivity. Our study suggests the potential use of LCNT with exsolved nano particles as an active and durable AFL for high-temperature SOFCs.

中文翻译：

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表面装饰的 La0.43Ca0.37Ni0.06Ti0.94O3−d 作为固体氧化物燃料电池应用的阳极功能层

研究了表面装饰的 La 0.43 Ca 0.37 Ni 0.06 Ti 0.94 O 3- d (LCNT) 钙钛矿氧化物作为阳极支撑固体氧化物燃料电池 (SOFC) 的阳极功能层 (AFL)。LCNT 支架上的表面外溶 Ni 纳米颗粒扩大了电化学活性三相边界 (TPB)，而没有任何团聚和机械故障。直径为 60 nm 的 Ni 颗粒从 LCNT 钙钛矿中均匀地溶出。具有 LCNT 阳极功能层 (AFL) 的 Ni-YSZ 阳极支撑电池的最大功率密度为 0.94 W/cm 2 ，与 900 °C 下的传统 Ni-YSZ AFL 电池的功率密度相似。与 Ni-YSZ AFL 电池相比，LCNT AFL 电池的激活极化电阻有效降低，但由于更厚的 YSZ 电解质和较低的电导率，它具有更高的欧姆电阻。