Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1277834 | International Journal of Hydrogen Energy | 2011 | 8 Pages |
Abstract
Planar electrolyte supported solid oxide fuel cells were operated at 900 °C with humidified H2 for 200 h using silver mesh and paste for cathode current collection. Continuous potentiostatic tests at 0.7 V appeared to induce migration of Ag towards electrode-electrolyte interphase, while continuous OCV tests caused no mass transport. Similar SOFCs fueled by coal syngas at 850 °C using Ag for both anode and cathode current collection indicated little, if any, Ag migration; providing the possibility of employing Ag for 100 h laboratory scale tests using coal-derived syngas. Use of high temperature steam, carbon dioxide and carbon monoxide did not result in the formation of silver carbonates.
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Authors
K. Channa R. De Silva, Brian J. Kaseman, David J. Bayless,