Sulfur Tolerant Anodes for SOFCs

Abstract

Solid oxide fuel cells (SOFCs) using yttria-stabilized zirconia (YSZ) electrolytes, lanthanum strontium manganate cathodes, and anodes (where Cr, and Ti) were fabricated. The sulfur tolerance of the various perovskite-based anodes was examined at 1273 K in a fuel. The (50/50 wt %) anode showed no degradation in the presence of up to 5000 ppm of in a hydrogen fuel. This anode was also able to operate for 8 h with 1% as a fuel and showed no degradation when the fuel was switched back to hydrogen. © 2003 The Electrochemical Society. All rights reserved.