Abstract High-resolution transmission and scanning electron microscopy of the solid oxide fuel cell (SOFC) anodes made of Ni and yttria-stabilized zirconia (YSZ), revealed a substantial microstructural reconstruction induced by the anodic current. These microstructural alterations, primarily the growth of NiO inclusions at the Ni | YSZ interface, the resultant orientation relationship between the NiO and YSZ grains, and Ni grain fragmentation on subsequent reduction, provide a straightforward evidence for the so-called oxygen spillover mechanism of the anodic reaction.

中文翻译：

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固体氧化物燃料电池含镍复合阳极中的离子转移：微观结构研究

摘要 由 Ni 和氧化钇稳定的氧化锆 (YSZ) 制成的固体氧化物燃料电池 (SOFC) 阳极的高分辨率透射和扫描电子显微镜显示，阳极电流引起了实质性的微观结构重建。这些显微组织的改变，主要是 NiO 夹杂物在 Ni | YSZ 界面、NiO 和 YSZ 晶粒之间的最终取向关系以及随后还原时的 Ni 晶粒碎裂，为阳极反应的所谓氧溢出机制提供了直接的证据。