Chem. Sci., 2025, Accepted Manuscript DOI: 10.1039/D5SC03281D, Edge Article Renhao Li, Chenxu Liu, Wenli Bao, Lin Li, Jingfeng Han, Xiaoxin Zou, Xiaowei Song, Donghai Mei, Zhiqiang Liang The ubiquitous presence of CO2 impurity in industrial hydrocarbon streams underscores the critical need for developing efficient CO2-selective adsorbents. Herein, we successfully synthesized a flexible K-MER-2.0 (a silica-alumina ratio of...