Breaking the Chlorine and Oxygen Evolution Scaling Relation via the Selective Shielding Effect of Oxophilic Ti Sites

Key Points

• The main aim is to enhance selectivity and stability in chlor-alkali electrolysis using a novel core-shell structure.
• Developed Co3O4/TiO2 core-shell nanowires
• Investigated the shielding effect of the TiO2 shell in preventing H2O access to Co3O4
• Conducted electrochemical tests to assess performance in acidic conditions
• The oxophilic TiO2 shell effectively decouples the activity of Co3O4 for chlorine and oxygen evolution
• Improved selectivity observed in electrolysis performance
• Enhanced stability demonstrated over prolonged operation