《ZIF-8 Membrane Separation Performance Tuning by Vapor Phase Ligand Treatment》 was written by Eum, Kiwon; Hayashi, Mikio; De Mello, Matheus Dorneles; Xue, Feng; Kwon, Hyuk Taek; Tsapatsis, Michael. HPLC of Formula: 934-32-7This research focused onZIF membrane separation vapor phase ligand treatment; ZIF-8; ligand-induced permselectivity; membranes; metal-organic frameworks; vapor phase. The article conveys some information:
Vapor phase ligand treatment (VPLT) of 2-aminobenzimidazole (2abIm) for 2-methylimidazole (2mIm) in ZIF-8 membranes prepared by two different methods (LIPS: ligand induced permselectivation and RTD: rapid thermal deposition) results in a notable shift of the mol. level cut-off to smaller mols. establishing selectivity improvements from ca. 1.8 to 5 for O2/N2; 2.2 to 32 for CO2/CH4; 2.4 to 24 for CO2/N2; 4.8 to 140 for H2/CH4 and 5.2 to 126 for H2/N2. Stable (based on a one-week test) oxygen-selective air separation performance at ambient temperature, 7 bar(a) feed, and 1 bar(a) sweep-free permeate with a mixture separation factor of 4.5 and oxygen flux of 2.6×10-3 mol m-2 s-1 is established. LIPS and RTD membranes exhibit fast and gradual evolution upon a 2abIm-VPLT, resp., reflecting differences in their thickness and microstructure. Functional reversibility is demonstrated by showing that the original permeation properties of the VPLT-LIPS membranes can be recovered upon 2mIm-VPLT. In the experiment, the researchers used many compounds, for example, 1H-Benzo[d]imidazol-2-amine(cas: 934-32-7HPLC of Formula: 934-32-7)
1H-Benzo[d]imidazol-2-amine(cas: 934-32-7) can be used in the hydrolysis of a choline carbonate. It was also used in the synthesis of imidazo[1,2-a]benzimidazoles.HPLC of Formula: 934-32-7
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem