Avila Jocasta, Lepre L Fernando, Santini Catherine C, Tiano Martin, Denis-Quanquin Sandrine, Chung Szeto Kai, Padua Agilio A H, Costa Gomes Margarida
Laboratoire de Chimie de l'ENS Lyon, CNRS and Université de Lyon, 46 allée d'Italie, 69364, Lyon, France.
University of Lyon, CPE Lyon, CNRS, UMR 5265, Chemistry, Catalysis, Polymers and Processes (C2P2), 43 Bvd. Du 11 Novembre 1918, F-69616, Villeurbanne, France.
Angew Chem Int Ed Engl. 2021 Jun 1;60(23):12876-12882. doi: 10.1002/anie.202100090.
Porous ionic liquids are non-volatile, versatile materials that associate porosity and fluidity. New porous ionic liquids, based on the ZIF-8 metal-organic framework and on phosphonium acetate or levulinate salts, were prepared and show an increased capacity to absorb carbon dioxide at low pressures. Porous suspensions based on phosphonium levulinate ionic liquid absorb reversibly 103 % more carbon dioxide per mass than pure ZIF-8 at 1 bar and 303 K. We show how the rational combination of MOFs with ionic liquids can greatly enhance low pressure CO absorption, paving the way towards a new generation of high-performance, readily available liquid materials for effective low pressure carbon capture.
多孔离子液体是一种兼具多孔性和流动性的非挥发性多功能材料。基于ZIF-8金属有机骨架以及醋酸鏻或乙酰丙酸鏻盐制备了新型多孔离子液体，这些材料在低压下吸收二氧化碳的能力有所增强。在1巴和303K条件下，基于乙酰丙酸鏻离子液体的多孔悬浮液每质量吸收的二氧化碳比纯ZIF-8可逆地多103%。我们展示了金属有机骨架与离子液体的合理组合如何能够极大地增强低压下对二氧化碳的吸收，为新一代高效、易于获得的用于有效低压碳捕获的液体材料铺平了道路。
