烧结
阳极
非阻塞I/O
材料科学
收缩率
电解质
氧化物
冶金
固体氧化物燃料电池
化学工程
复合材料
化学
电极
催化作用
生物化学
物理化学
工程类
作者
Tugce Ucun,Murat Murutoglu,Ozge Ulasan,Aligül Büyükaksoy,Yahya Kemal Tür,Hüseyin Yılmaz
标识
DOI:10.1016/j.ssi.2024.116512
摘要
This study presents the co-sintering of anode-supported GDC/NiO-GDC Solid Oxide Fuel Cells (SOFCs) prepared by the Cold Sintering Process (CSP). A layer (<100 μm) of GDC electrolyte powders was first spread on a circular piece of filter paper cut at the die punch diameter size, then put on a relatively thick, porous NiO-GDC anode powder before CSP. The bi-layer was first cold-sintered at room temperature (RT), a very rare case in the literature, and then post-sintered at 1100 °C, which was much lower than the ones reported in the literature by using conventional furnaces. In the end, GDC electrolyte densities were found to be between 95 and 97% of their theoretical value while the NiO-GDC anode was sintered to gain mechanical strength but remained porous as desired. SOFCs constructed from these cold-sintered GDC/NiO-GDC bilayers exhibited an open circuit potential of 0.85 V at 750 °C, confirming dense and gas-tight GDC electrolytes. A promising polarization resistance of 0.15 Ω.cm2 was obtained from the cold-sintered Ni-GDC anode at 750 °C.
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