Details

Autor(en) / Beteiligte

• Tucker, Michael C.
• Lau, Grace Y.
• Jacobson, Craig P.
• DeJonghe, Lutgard C.
• Visco, Steven J.

Titel

Stability and robustness of metal-supported SOFCs

Ist Teil von

• Journal of power sources, 2008-01, Vol.175 (1), p.447-451

Ort / Verlag

Lausanne: Elsevier B.V

Erscheinungsjahr

2008

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Tubular metal-supported SOFCs with YSZ electrolyte and electrodes comprising porous YSZ backbone and infiltrated Ni and LSM catalysts are operated at 700 °C. Tolerance to five complete anode redox cycles and five very rapid thermal cycles is demonstrated. The power output of a cell with as-infiltrated Ni anode degrades rapidly over 15 h operation. This degradation can be attributed primarily to coarsening of the fine infiltrated Ni particles. A cell in which the infiltrated Ni anode is precoarsened at 800 °C before operation at 700 °C shows dramatically improved stability. Stable operation over 350 h is demonstrated.