Sulfur-Tolerant Materials for the Hydrogen Sulfide SOFC

Abstract

This study examined sulfur tolerant materials for solid oxide fuel cells (SOFCs) operating on and containing fuels, focusing on the stability and electrochemical performance of perovskite-type materials in a atmosphere under SOFC operating conditions atm, Preliminary results indicate anodes of the general form are stable and active toward the electrochemical oxidation of In particular, an SOFC using as the anode has shown good performance at levels of 10%, over 5000 times greater than the tolerance level of contemporary Ni-based systems. The results are promising due to the drastic improvement in sulfur tolerance compared to the current generation of SOFC anode materials. © 2004 The Electrochemical Society. All rights reserved.