CO2 对 La0.6Sr0.4CoO3-δ阴极影响

Abstract

La0.6Sr0.4CoO3-δ (LSC) perovskite represents one kind of cathode materials for intermediate- and low-temperature cells having high electronic conductivity and high ionic conductivity as well as high catalytic activity for oxygen reduction. The stability of LSC cathode against CO2 in air is an important aspect for practical application. In this work, we investigated the adsorption of CO2 on LSC, reaction of CO2 with LSC and thereof the effect of CO2 on cathode performance.La0.6Sr0.4CoO3-δ (LSC) perovskite represents one kind of cathode materials for intermediate- and low-temperature cells having high electronic conductivity and high ionic conductivity as well as high catalytic activity for oxygen reduction. The stability of LSC cathode against CO2 in air is an important aspect for practical application. In this work, we investigated the adsorption of CO2 on LSC, reaction of CO2 with LSC and thereof the effect of CO2 on cathode performance