Yang Liting, Cai Peiyu, Jin Xuance, Wang Zhengjie, Zhou Hong-Cai, Huang Ning
Department of Polymer Science and Engineering, State Key Laboratory of Silicon and Advanced Semiconductor Materials, Zhejiang University, 310058, Hangzhou, China.
Department of Chemistry, Texas A&M University, College Station, Texas, 77843, United States.
Chem Asian J. 2025 Mar 3;20(5):e202401288. doi: 10.1002/asia.202401288. Epub 2025 Feb 4.
Three new types of Si-centered porous organic polymer (Si-POPs) were successfully prepared using phenolic resin-type chemistry to form C-C bonds. This new family of microporous Si-POPs manifests as uniform, microporous, spherical particles with a high specific surface area. Notably, Si-POPs were engineered to possess varying numbers of hydroxyl (-OH) groups by altering the monomer in the synthetic process. Among these materials, the variant with the highest number of hydroxyl groups exhibited ultra-high CO adsorption capacity, reaching up to 4.3 mmol g at 273 K and 1.0 bar, which surpasses the performance of most porous polymers. Furthermore, Si-POPs also demonstrated remarkable selectivity adsorption for carbon dioxide over nitrogen (17-50, IAST at 273 K and 1.0 bar). This study not only highlighted the superior CO adsorption properties of Si-POPs but also explored their potential application in selective gas adsorption.
