Development of robust polysesquioxane/polymer dual-network hybrid membranes for flue gas carbon capture

Yanyan Chen, Qian Li, Helei Liu, Reza Zarghami, Navid Mostoufi, Liang Yu*, Xiao Feng, Toshinori Tsuru, Bo Wang

*此作品的通讯作者

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摘要

In the present study, robust organic/inorganic dual-network membranes were designed by combining the advantages of polysesquioxane with superior thermal and structural stabilities, and polyether with outstanding CO2-philic and film-forming abilities. Specifically, a typical polysesquioxane precursor, bis(triethoxysilyl)ethane (BTESE), was selected to generate the inorganic-based amorphous network via a hydrolysis and condensation process, during which polyethylene glycol (PEG) was introduced to form the organic network. The Si-O-Si network derived from BTESE could provide excellent mechanical stability, while the repeat polar ethylene oxide units contained in PEG were expected to furnish a strong affinity toward CO2 through dipolar-dipolar interactions. In comparison to individual membranes, the dual-network membranes presented both attractive CO2/N2 separation performance and improved structural stability. These dual-network membranes proposed in this work hold great potential in industrial flue gas carbon capture and the strategies for designing such inorganic–organic dual-network membranes could be extended to other robust inorganic–organic hybrid films/materials.

源语言英语
文章编号120189
期刊Chemical Engineering Science
295
DOI
出版状态已出版 - 5 8月 2024

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Chen, Y., Li, Q., Liu, H., Zarghami, R., Mostoufi, N., Yu, L., Feng, X., Tsuru, T., & Wang, B. (2024). Development of robust polysesquioxane/polymer dual-network hybrid membranes for flue gas carbon capture. Chemical Engineering Science, 295, 文章 120189. https://doi.org/10.1016/j.ces.2024.120189