Cover Feature: Rational Engineering of Pillar‐Layered Co‐MOFs Through the Hard‐Soft Acid–Base Principle: Elucidating Highly Robust Flue Gas Desulfurization Under Dynamic Dry and Humidity (ChemistryEurope 4/2026)

Key Points

• The research aims to develop a stable, efficient metal-organic framework (MOF) for removing sulfur dioxide from flue gases.
• Utilized hard-soft acid-base (HSAB) theory for structural engineering of the MOF.
• Designed a pillar-layered structure to increase pore volume.
• Incorporated Lewis basic sites into the MOF framework to enhance SO2 adsorption.
• Achieved highly efficient sulfur capture from flue gas emissions.
• Demonstrated structural robustness under varying humidity conditions.
• Showed improved performance compared to traditional desulfurization methods.