Related Experiment Video
Updated: Mar 20, 2026
Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes
Published on: August 16, 2018
In situ creation of crystalline channels in ultrathin network polymer membranes for pressurized H2/CO2 separation
Xueru Yan1,2, Tianqi Song2, Jiao Zhu1,3
1Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin Key Laboratory of Membrane Science and Desalination Technology, Haihe Laboratory of Sustainable Chemical Transformations, State Key Laboratory of Chemical Engineering and Low-Carbon Technology, Tianjin University, Tianjin 300072, China.
Abstract:
Ordered channels provide an excellent foundation for creating gas-selective pathways in polymeric membranes that endure pressurized and high-temperature conditions. Herein, we present a competitive-reaction interfacial polymerization (CRIP) approach to in situ creation of crystalline channels in ultrathin network polymer membranes, which allows the crystalline segments to attach to the amorphous polymer network tightly. The separation performances of the membrane were regulated by controlling the reaction parameters, and the microstructure was characterized systematically. The as-prepared membrane exhibited an extraordinary mixed H2/CO2 selectivity of 85 with a H2 permeance of 184 gas permeation units under 11 bar and 150°C. Membranes show outstanding resistance to high pressures and temperatures, which offers high attractiveness for H2 production and CO2 capture.
