Facile manufacture of porous organic framework membranes for precombustion CO<sub>2</sub> capture.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 30255154.
- Also identified by DOI 10.1126/sciadv.aau1698 and PMC identifier 6155097.
- Licence recorded as CC BY-NC.
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Abstract
The development of new membranes with high H<sub>2</sub> separation performance under industrially relevant conditions (high temperatures and pressures) is of primary importance. For instance, these membranes may facilitate the implementation of energy-efficient precombustion CO<sub>2</sub> capture or reduce energy intensity in other industrial processes such as ammonia synthesis. We report a facile synthetic protocol based on interfacial polymerization for the fabrication of supported benzimidazole-linked polymer membranes that display an unprecedented H<sub>2</sub>/CO<sub>2</sub> selectivity (up to 40) at 423 K together with high-pressure resistance and long-term stability (>800 hours in the presence of water vapor).