Jo, Hyuna Lee, Woo Ram Kim, Nam Woo Jung, Hyun Lim, Kwang Soo Kim, Jeong Eun Kang, Dong Won Lee, Hanyeong Hiremath, Vishwanath Seo, Jeong Gil Jin, Hailian Moon, Dohyun Han, Sang Soo Hong, Chang Seop 2024-01-20T02:03:45Z 2024-01-20T02:03:45Z 2021-09-01 2017-02-08 1864-5631 https://pubs.kist.re.kr/handle/201004/123069 A combined sonication and microwave irradiation procedure provides the most effective functionalization of ethylenediamine (en) and branched primary diamines of 1-methylethylenediamine (men) and 1,1-dimethylethylenediamine (den) onto the open metal sites of Mg-2(dobpdc) (1). The CO2 capacities of the advanced adsorbents 1-en and 1-men under simulated flue gas conditions are 19 wt% and 17.4 wt%, respectively, which are the highest values reported among amine-functionalized metal-organic frameworks (MOFs) to date. Moreover, 1-den exhibits both a significant working capacity (12.2 wt%) and superb CO2 uptake (11 wt%) at 3% CO2. Additionally, this framework showcases the superior recyclability; ultrahigh stability after exposure to O-2, moisture, and SO2; and exceptional CO2 adsorption capacity under humid conditions, which are unprecedented among MOFs. We also elucidate that the performance of CO2 adsorption can be controlled by the structure of the diamine ligands grafted such as the number of amine end groups or the presence of side groups, which provides the first systematic and comprehensive demonstration of finetuning of CO2 uptake capability using different amines. English WILEY-V C H VERLAG GMBH CO2 CAPTURE FLUE-GAS POROUS MATERIALS ADSORPTION SEPARATION AIR SELECTIVITY MECHANISM CAPACITY POLYMER Fine-Tuning of the Carbon Dioxide Capture Capability of Diamine-Grafted Metal-Organic Framework Adsorbents Through Amine Functionalization Article 10.1002/cssc.201601203 1 CHEMSUSCHEM, v.10, no.3, pp.541 - 550 CHEMSUSCHEM 10 3 541 550 scie scopus 000394572100010 2-s2.0-85007124168 Chemistry, Multidisciplinary Green & Sustainable Science & Technology Chemistry Science & Technology - Other Topics Article CO2 CAPTURE FLUE-GAS POROUS MATERIALS ADSORPTION SEPARATION AIR SELECTIVITY MECHANISM CAPACITY POLYMER amine carbon dioxide capture functionalization metal-organic frameworks working capacity