In situ creation of crystalline channels in ultrathin network polymer membranes for pressurized H 2 /CO 2 separation
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 H 2 /CO 2 selectivity of 85 with a H 2 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 H 2 production and CO 2 capture.
Fields of Study & Subjects
Membrane Separation and Gas Transport
Catalysts for Methane Reforming
Carbon dioxide utilization in catalysis
Publication details
- Journal / source
- Science Advances
- Publisher
- American Association for the Advancement of Science (AAAS)
- Volume
- 12
- Issue
- 12
- Pages
- eaeb4957–eaeb4957
- Publication date
- 18 March 2026
- Language
- EN