Zinc triazolate oxalate CALF-20 with platelet morphology and its PEBAX-based mixed matrix membranes for CO 2 /N 2 separation.
Qian JiaElsa LasseuguetteHarpreet KaurAaron B NadenMaria-Chiara FerrariPaul A WrightPublished in: Chemical communications (Cambridge, England) (2024)
CALF-20, [Zn 2 (1,2,4-triazolate) 2 (oxalate)] shows remarkable performance in post-combustion carbon capture, even under humid conditions 1 but its reported crystal morphology hinders its applicability in mixed matrix membranes (MMMs). Here, a route to its preparation as platelets a few tens of nm thick is reported. These were incorporated into a PEBAX MH1567 polymer matrix and the resultant MMMs display improvement in CO 2 permeability and CO 2 /N 2 selectivity.