Enhanced gas separation performance using carbon membranes containing nanocrystalline cellulose and BTDA-TDI/MDI polyimide by Sazali, Norazlianie, W. Salleh, Wan Norharyati, Ismail, Ahmad Fauzi, Ismail, Nor hafiza, Mohamed, Mohamad Azuwa, M. Nordin, N. A. H., M. Sokri, M. N. M., Iwamotoe, Y., Hondae, S.