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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium Energy Materials 2017: Materials for Energy Conversion with Emphasis on SOFC
Presentation Title Analysis of the Effects of Chromium Poisoning on LSM-based Cathode Using Polarization Modeling and Impedance Measurements
Author(s) Ruofan Wang, Manuel Würth, Boshan Mo, Uday Bhanu Pal, Srikanth Gopalan, Soumendra Basu
On-Site Speaker (Planned) Uday Bhanu Pal
Abstract Scope Anode-supported planar solid oxide fuel cells (SOFCs) with yttria-stabilized zirconia electrolyte and Sr-doped LaMnO<SUB>3</SUB> (LSM)-based cathode, were electrochemically tested with and without the presence of chromia-forming alloy interconnect. Humidified hydrogen (97% H<SUB>2</SUB> - 3% H<SUB>2</SUB>O) and oxygen-nitrogen-water vapor mixture were used on the anode and cathode sides, respectively. The water vapor content on the cathode side was varied in order to control the rate of Cr vaporization. Current-voltage (I-V) and impedance spectroscopy measurements were used to characterize the performance and model the polarization losses in the cell. The role of Cr poisoning resulting in the performance degradation of the LSM-based cathode under various conditions was analyzed. The effectiveness of protective spinel coatings over the alloy interconnect in mitigating Cr poisoning of the cathode was also investigated.
Proceedings Inclusion? Planned: Stand-alone book in which only your symposium’s papers would appear (indicate title in comments section below)

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Analysis of the Effects of Chromium Poisoning on LSM-based Cathode Using Polarization Modeling and Impedance Measurements
C-10: Effect of Sn on the Microstructure and Mechanical Properties of AM90 Extruded Alloy
C-9: Composition Effects on the Characteristics of Glass Sealants for Intermediate Temperature Solid Oxide Fuel Cell Applications
Chromium Impurity Effects on SOFC Cathodes Using Half-cell Measurements
Development of Solid Oxide Fuel Cell Residential CHP System
Effect of Strontium Content and Strain on Surface Segregation in LSCF
Electrophoretically Deposited Copper Manganese Spinel Coatings for Interconnections in Solid Oxide Fuel Cells
Enhanced Performance of Doped Ceria Electrolyte by the Addition of Barium Carbonate in Solid Oxide Fuel Cells
Fabrication and Operation of a 600W Anode-supported Tubular SOFC Stack
Investigation on Cathode Interlayer and Electrolyte for Improving Electric Power Efficiency of SOFCs
Low Temperature RAA Process for SOFC Stacks
Mitigation of Chromium Poisoning in Solid Oxide Fuel Cells
Modified SOFC Cermet Anodes for Improved Catalysis at High Fuel Utilization
New Materials for Solid Oxide Fuel Cells
Oxygen Reduction Reaction at the Cathode of Solid Oxide Fuel Cell Enhanced with Oxide Particles
Oxygen Reduction Reaction Mechanisms on Ruddlesden-Popper Cathodes for Intermediate-Temperature Solid Oxide Fuel Cells
Phase Field Modelling of Microstructure and Conductivity Evolution of SOFC Electrodes
Plasma Sprayed Protective Coatings on Metallic SOFC Interconnects: Interplay between Processing and Performance
Poisoning Mechanism and Performance Degradation at SOFC Cathode/Electrolyte Interfaces
Reactive Synthesis of Spinel Contact Layers with Metallic Precursor Powders
Synthesis and Characterisation of Perovskite Type Anode Material and Its Tape Casting for IT-SOFC Application

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