Entropy-engineered spinel oxide coatings to enhance oxidation resistance and electrical performance of solid oxide fuel cell interconnectors

• Entropy stabilized coating for SOFC application has been demonstrated. • The High-Entropy system can promote formation of single-phase spinel oxide. • The complex spinel coating can provide effective oxidation protection. • The complex spinel coating can exhibit low ASR value. • The complex spinel coating can prevent Cr evaporation effectively. This study investigates spinel oxide coatings derived from medium- to high-entropy alloy systems for solid oxide fuel cell interconnect applications. A