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Showing 1 to 5 of 5 for “"Chromium Poisoning"”.
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Chromium poisoning mitigation in solid oxide fuel cell air electrodes: mechanisms for Cr deposition and removal
Chromium poisoning of the air electrode remains a significant obstacle to the long-term performance of solid oxide fuel cells (SOFCs). Many strategies to mitigate this effect have been investigated. However, they require the introduction and development of new materials and components. Furthermore, …
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Model of chromium poisoning in the cathode of a solid oxide fuel cell using the lattice Boltzmann method
… of a solid oxide fuel cell (SOFC) contains chromium in order to protect the metal from the corrosive environment in the fuel cell. Unfortunately, the chromium introduces chemical instability in the cathode as it migrates from the interconnect to the pores in the cathode. A model was …
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Mechanical Characterization of Coating-Interconnect Interfaces and Anode-Electrolyte Interfaces for Solid Oxide Fuel Cells
… with less expensive, more readily available chromium alloyed iron metals as interconnects. However, when incorporating chromium-alloyed interconnects, steps must be taken to inhibit chromium poisoning of cathodes. To prevent the chromium poisoning, a dense manganese cobalt spinel oxide (MCO) …
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Study of Perovskite Structure Cathode Materials and Protective Coatings on Interconnect for Solid Oxide Fuel Cells
… operative temperature, electrode degradation, chromium poisoning, oxidization of interconnect, and so on. Cathode plays a major role in determining the electrochemical performance of a single cell. In this dissertation, three perovskite cathode materials, La0.6Sr0.4Co0.2Fe0.8O3 (LSCF), …
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Interactions of the Air Electrode with Electrolyte and Interconnect in Solid Oxide Cells
… inhibits the Cr deposition. The mechanisms of Cr poisoning and LSM elemental surface segregation are discussed. A 200 mA·cm-2 current load have been applied on the simulated cells. Mn is a key element for Cr deposition under polarization. Excessive Mn in the LSM lessens the formation of …