“…Hence, commercialization of SOEC is restricted using air electrode system like LSM
[33] . In response to these challenges regarding functionalization of the LSM air electrode, formulation of alternate novel single/double perovskite based mixed conducting material (MIEC) like La 1‐x Sr x Co y Fe 1‐y O 3 , (LSCF), Ba 1‐x Sr x Co y Fe 1‐y O 3 (BSCF), Ba 1‐x Co x Fe y Nb 1‐y O 3 (BCFN), Sr 2 Fe 1‐x Mo x O 6 with extended TPB length have been investigated by several group of researchers
[28,33,34,35] . The electrochemical active area is enhanced through TPB comprising of pore, MIEC active site and ion conducting sites (promoting oxygen vacancy‐
sites)
[36,37] .…”