Compatibility of La26O27(BO3)8 electrolyte with standard cathode materials for use in proton conducting solid oxide fuel cells

► The compatibility of La26O27(BO3)8 with LSM, LSCM, La2NiO4, BSCF cathodes was studied. ► The cathodes were chemical and mechanical compatible with La26O27(BO3)8 except BSCF. ► The lowest value of area specific resistance (ASR) was observed for La2NiO4 cathode.