A porous metal-organic cage liquid for sustainable CO2 conversion reactions

Porous liquids are fluids with the permanent porosity, which can overcome the poor gas solubility limitations of conventional porous solid materials for three phase gas-liquid-solid reactions. However, preparation of porous liquids still requires the complicated and tedious use of porous hosts and b...

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Bibliographic Details
Published in:Nature communications 2023-06, Vol.14 (1), p.3317-3317, Article 3317
Main Authors: He, Chang, Zou, Yu-Huang, Si, Duan-Hui, Chen, Zi-Ao, Liu, Tian-Fu, Cao, Rong, Huang, Yuan-Biao
Format: Article
Language:English
Subjects:
639/301/923/3931
639/301/923/966
639/638/298/923/3931
Cages
Calixarenes
Carbon dioxide
Fluidity
Gas solubility
Gas-liquid-solid reactions
Humanities and Social Sciences
Ions
Liquids
multidisciplinary
Polyethylene glycol
Porosity
Porous materials
Science
Science (multidisciplinary)
Self-assembly
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Summary:Porous liquids are fluids with the permanent porosity, which can overcome the poor gas solubility limitations of conventional porous solid materials for three phase gas-liquid-solid reactions. However, preparation of porous liquids still requires the complicated and tedious use of porous hosts and bulky liquids. Herein, we develop a facile method to produce a porous metal-organic cage (MOC) liquid (Im-PL-Cage) by self-assembly of long polyethylene glycol (PEG)-imidazolium chain functional linkers, calixarene molecules and Zn ions. The Im-PL-Cage in neat liquid has permanent porosity and fluidity, endowing it with a high capacity of CO 2 adsorption. Thus, the CO 2 stored in an Im-PL-Cage can be efficiently converted to the value-added formylation product in the atmosphere, which far exceeds the porous MOC solid and nonporous PEG-imidazolium counterparts. This work offers a new method to prepare neat porous liquids for catalytic transformation of adsorbed gas molecules. Preparation of porous liquids are fluids with the permanent porosity still requires complicated and tedious use of porous hosts and bulky liquids. Here, the authors develop a facile method to produce a porous metal-organic cage liquid by self-assembly of long polyethylene glycolimidazolium chain functional linkers, calixarene molecules and Zn ions.
ISSN:2041-1723
2041-1723
DOI:10.1038/s41467-023-39089-x