Effect of Ceria Addition in SOFC Anodes on Sulfur Poisoning

Abstract

In SOFCs, a wide range of fuel gases can be applied, but fuel impurity tolerance may be desired. By applying gadolinia-doped ceria (GDC) anode material, we analyzed power generation characteristics and internal reforming followed by high-resolution electron microscopy in order to moderate sulfur poisoning. Effect of ceria addition into the anodes layers on sulfur poisoning is systematically analyzed and discussed.

Effect of H2S and HCl contaminants on nickel and ceria pattern anode solid oxide fuel cells

“…On the other hand, many previous investigations have concluded that the formation of bulk cerium sulfides is unlikely to occur at the temperatures and concentrations used in this work [3,19,60]. While some studies have reported improved tolerance with ceria, it is not usually considered to be any better performing than a nickel as an anode when exposed to H 2 S-rich gas [3,19,51].…”