Front Cover: Mechanochemical “Cage‐on‐MOF” Strategy for Enhancing Gas Adsorption and Separation through Aperture Matching

A series of MOF@PCC composites was synthesized through mechanochemical reactions, as reported by Hang Xing, Yu Fang et al. in their Research Article (e202416884). This strategic placement of PCCs on the MOF surface optimized the pore structure of the composites, while the incorporation of polar functional groups facilitated specific interactions with targeted gas molecules. By carefully aligning the aperture sizes of both PCCs and MOFs, a significant enhancement in gas adsorption capacities was obtained, leading to improved binary gas separation capabilities and expanding the potential applications of these composites.