Chlorine-functionalized keto-enamine-based covalent organic frameworks for CO2 separation and capture. Issue 47 (5th October 2018)

• Record Type: Journal Article
• Authors: Shinde, Digambar B.; Ostwal, Mayur; Wang, Xinbo; Hengne, Amol M.; Liu, Yang; Sheng, Guan; Huang, Kuo-Wei; Lai, Zhiping
• Is Part Of: CrystEngComm. Volume 20:Issue 47(2018)
• Page Start: 7621
• Page End: 7625
• Publication Date: 2018-10-05
• Subjects: Crystals -- Periodicals; Crystal growth -- Periodicals; Crystallography -- Periodicals; Cristaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Cristallographie -- Périodiques; 548
• DOI: 10.1039/c8ce01397g
• Languages: English
• ISSNs: 1466-8033

Abstract

Abstract : Enhancing the CO2 uptake and selectivity of the keto-enamine-based COFs by chlorination. Abstract : We report highly chemically and thermally stable chlorine-functionalizedCAA-COF-1 andCAA-COF-2 . The chlorine-functionalized COFs exhibited enhanced CO2 uptake (by ∼28–44%) in comparison with their pristine COF analogues (TpPa-1 andTpBd ). Column breakthrough experiments reveal thatCAA-COF-1 andCAA-COF-2 display a high CO2 /N2 (10/90) gas mixture selectivity of 95 and 54, respectively. Additionally, CAA-COF-1 exhibits a CO2 /CH4 (10/90) column breakthrough selectivity of 29.