Electrolysis of steam and co-electrolysis of steam and carbon dioxide was studied in
stacks composed of Ni/YSZ electrode supported Solid Oxide Electrolysis Cells. The
results of this study show that long term electrolysis is feasible in these solid oxide
electrolysis stacks. The degradation of the electrolysis cells was found to be influenced
by the adsorption of impurities from the gasses, whereas the application of chromium
containing interconnect plates and glass sealings do not seem to influence the durability.
Cleaning the inlet gasses to the Ni/YSZ electrode resulted in operation without any long
term degradation, and may therefore be a solution for operating these Ni/YSZ based
solid oxide electrolysis stacks without any long term cell stack degradation.
|Conference||Risø International Energy Conference 2009|
|Period||14/09/2009 → 16/09/2009|
|Series||Denmark. Forskningscenter Risoe. Risoe-R|
- Fuel Cells and hydrogen