Compatibility of proton conducting La6WO12 electrolyte with standard cathode materials

► Compatibility of proton conductor LWO with LSM, LSCM and BSCF cathodes was studied. ► The cathodes were chemically and mechanically compatible with LWO except BSCF. ► The lowest value of ASR was obtained for 50 wt % of LWO in LWO/LSM composite cathode.