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Manganese Cobalt-Based Spinel Coatings Processed by Electro-Phoretic Deposition Method: The Influence of Sintering on Degadation Issues of Solid Oxide Cell Oxygen Electrodes at 750 °C
Zanchi, E.; Ignaczak, J.; Kamecki, B.; Jasiński, P.; Molin, S.; Boccaccini, A.R.; Smeacetto, F. Manganese–Cobalt Based Spinel Coatings Processed by Electrophoretic Deposition Method: The Influence of Sintering on Degradation Issues of Solid Oxide Cell Oxygen Electrodes at 750 °C. Materials2021, 14, 3836.
Zanchi, E.; Ignaczak, J.; Kamecki, B.; Jasiński, P.; Molin, S.; Boccaccini, A.R.; Smeacetto, F. Manganese–Cobalt Based Spinel Coatings Processed by Electrophoretic Deposition Method: The Influence of Sintering on Degradation Issues of Solid Oxide Cell Oxygen Electrodes at 750 °C. Materials 2021, 14, 3836.
Zanchi, E.; Ignaczak, J.; Kamecki, B.; Jasiński, P.; Molin, S.; Boccaccini, A.R.; Smeacetto, F. Manganese–Cobalt Based Spinel Coatings Processed by Electrophoretic Deposition Method: The Influence of Sintering on Degradation Issues of Solid Oxide Cell Oxygen Electrodes at 750 °C. Materials2021, 14, 3836.
Zanchi, E.; Ignaczak, J.; Kamecki, B.; Jasiński, P.; Molin, S.; Boccaccini, A.R.; Smeacetto, F. Manganese–Cobalt Based Spinel Coatings Processed by Electrophoretic Deposition Method: The Influence of Sintering on Degradation Issues of Solid Oxide Cell Oxygen Electrodes at 750 °C. Materials 2021, 14, 3836.
Abstract
This paper seeks to examine how the Mn-Co spinel interconnect coating microstructure can in-fluence the Cr contamination in an oxygen electrode of intermediate temperature Solid Oxide Cells at the operating temperature of 750 °C. A Mn-Co spinel coating is processed on Crofer 22 APU substrates by electrophoretic deposition and subsequently sintered following both the one-step and two-step sintering, in order to obtain significantly different densification levels. The electrochemical characterization is performed on anode supported cells with a LSCF cathode. The cells were aged prior to the electrochemical characterization in contact with the spinel coated Crofer 22 APU at 750 °C for 250 hours. Current-voltage and impedance spectra of the cells were measured after the exposure with the interconnect. Post-mortem analysis of the interconnect and the cell was carried out in order to assess the Cr retention capability of coatings with different microstructures.
Copyright:
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