Evaluation of Nd_0.8−xSr_0.2Ca_xCoO_3−δ(x = 0, 0.05, 0.1, 0.15, 0.2) as a cathode material for intermediate-temperature solid oxide fuel cells

Abstract

The increase in Ca for Nd0.8−xSr0.2CaxCoO3−δ limits the electronic compensation capacity, resulting in a decrease in CTE. The Ca-doped material maintains good electrochemical properties under CTE reduction and thus can be used as an IT-SOFC cathode.