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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium Energy Materials 2017: Materials for Energy Conversion with Emphasis on SOFC
Presentation Title Oxygen Reduction Reaction at the Cathode of Solid Oxide Fuel Cell Enhanced with Oxide Particles
Author(s) Changrong Xia
On-Site Speaker (Planned) Changrong Xia
Abstract Scope Perovskite oxides such as lanthanum strontium cobalt ferrite are mixed electron-ionic conductors that have potential application as the electrocatalysts for oxygen reduction reaction in solid-state electrochemical devices including solid oxide fuel cells (SOFCs) for efficient energy conversion and membrane reactors for clean coal energy delivery. This work presents the kinetic enhancement through various oxides; doped ceria, barium carbonate, strontium oxide, calcium oxide, and transition metal oxides. For example, BaCO3 is demonstrated to to be effective in enhanceing the high temperature oxygen reduction reaction. At 700 C, the area specific surface resistance for La0.8Sr0.2FeO3(LSF) on yttria-stabilized zirconia electrolyte decreases from 2.95 Ω cm2 to 0.77 Ω cm2 when 12.9wt% BaCO3 nanoparticles are infiltrated to the porous LSF electrode. By comparing the improving factors reported in the literatures, it is found that the catalytic activity is even higher than those for precious metals such as Pd, Rh, Pt and Ag.
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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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