Quantitative Characterization of SOFC Nickel-YSZ Anode Microstructure Degradation Based on Focused-Ion-Beam 3D-Reconstruction Technique
Source abstract
Abstract
The anode microstructural evolution is correlated to its electrochemical characteristics during a long time discharge for conventional nickel-yttria-stabilized zirconia composite anode. Self made anode performance degraded with operation time in humidified hydrogen, with the increases of both ohmic and polarization losses. The anode samples after different discharging times were analysized by 3-dimensional microstructure reconstruction based on focused ion beam-scanning electron microscopy technique. Nickel connectivity, nickel-yttria-stabilized zirconia interface area and the active three-phases-boundary length were correlated to the anode degradation. The influences of bulk gas humidity and current density were also investigated to reveal their contributions to the anode degradation.
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Research context
OpenAlex topics: Advancements in Solid Oxide Fuel Cells · Electronic and Structural Properties of Oxides · Semiconductor materials and devices
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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