A comparison on effects of CO2 on La0.8Sr0.2MnO3+δ and La0.6Sr0.4CoO3−δ cathodes

► Effects of carbon dioxide on performances and EIS of La0.6Sr0.4CoO3−δ (LSC) cathode. ► Effects of carbon dioxide on performances and EIS of La0.8Sr0.2MnO3−δ (LSM) cathode. ► CO2 adsorption model on LSC from 550 °C to 800 °C. ► CO2 adsorption model on LSM from 650 °C to 800 °C.