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A poly [2, 2′-(p-oxydiphenylene)-5, 5′-bibenzimidazole] (OPBI) was employed to pyrolyze under an inert Ar atmosphere to produce alumina-supported carbon molecular sieve membranes (CMSMs) for CO2/CH4 gas separation. Pyrolysis temperature was also varied from 550°C to 750°C to tailor the carbon microstructure and then optimize the separation performances of CMSMs. A structure-performance relationship...
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