Evaluation of La_(0.5)Sr_(0.5)Co_(0.5)Fe_(0.25)Mn_(0.25)O_(3-δ) Perovskite-Type Oxide as the Cathode Material for Solid Oxide Fuel Cells

摘要

An evaluation of La_(0.5)Sr_(0.5)Co_(0.5)Fe_(0.25)Mn_(0.25)O_(3-δ) perovskite type oxide as the cathode material for Solid Oxide Fuel Cells (SOFC) is presented. La_(0.5)Sr_(0.5)Co_(0.5)Fe_(0.25)Mn_(0.25)O_(3-δ) was prepared using high temperature solid state reaction. We show results of structural,thermogravimetric,low temperature and high temperature transport properties,together with high temperature chemical reactivity studies in relation to zirconia and ceria based solid electrolytes. Additionally,we present results of testing of electrochemical properties of SOFC cell based on ceria type electrolyte and La_(0.5)Sr_(0.5)Co_(0.5)Fe_(0.25)Mn_(0.25)O_(3-δ) cathode material.