Interfacial effects in monolithic solid oxide fuel cells
Abstract
The interfacial resistance of thin three-layer ceramic solid oxide fuel cell composites was studied at 1000 degrees using ac impedance techniques. The anode interfacial resistance was found to increase dramatically when the H sub 2 O content decreased below 0.03 atm in a H sub 2/H sub 2 O fuel system. Increases in the anode interfacial resistance were also observed in the presence of H sub 2 S. Significant decreases in the anode interfacial resistance were accomplished by tailoring the electrode's microstructure.
- Publication:
-
Presented at the Electrochemical Society Fall Meeting
- Pub Date:
- October 1989
- Bibcode:
- 1989ecs..meet...15D
- Keywords:
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- Anodes;
- Ceramics;
- Electrochemistry;
- Electrodes;
- Fuel Cells;
- Solid Electrolytes;
- Interfaces;
- Oxides;
- Energy Production and Conversion