Chemical fixation of carbon dioxide catalyzed by magnetically recoverable NH2-MIL-101(Al) as an elegant nanoreactor

Abstract

A new heterogeneous catalyst, magnetic amino-MIL-101(Al), was synthesized based on the reaction of NH 2-MIL-101(Al) and silica coated magnetic nanoparticles, Fe 3 O 4 @SiO 2. The prepared catalyst was characterized by UV-vis, FT-IR, X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), energy dispersive X-ray (EDX) and inductively coupled plasma (ICP) methods. The catalytic activity of this new catalyst was investigated in the fixation of carbon dioxide with epoxides under atmospheric pressure at 100 °C. Excellent yields, short reaction times and reusability without significant decrease in its initial activity are the advantages of this noble catalyst. Moreover, magnetic property of the catalyst allows easy separation by using an external magnetic field .

Ionic Liquid-Decorated MIL-101(Cr) via Covalent and Coordination Bonds for Efficient Solvent-Free CO2 Conversion and CO2 Capture at Low Pressure

“…Compared to other porous materials, the individual nature of the MOF, including adjustable pore sizes, controllable functionalities, permanent porosity, and uniform cavities, make them attractive for a wide range of applications, − especially gas storage . Owing to the above-mentioned properties, MOFs, constructed from inorganic metal ions and organic ligands, are extensively developed as ideal heterogeneous catalysts for CO 2 adsorption and fixation . Additionally, the decoration of pore surfaces of MOFs with the desired cocatalyst, particularly ionic liquid (IL), offers a suitable heterogeneous catalyst. , Since imidazolium and amine-based moieties can improve the conversion of CO 2 , , the designing of the proper ionic liquid is the important key for the activation of the substrate in the cycloaddition of CO 2 .…”

Chemical fixation of CO2: the influence of linear amphiphilic anions on surface active ionic liquids (SAILs) as catalysts for synthesis of cyclic carbonates under solvent-free conditions

“…Cyclic carbonates are used in numerous industrial sectors such as aprotic polar solvents, monomers for polycarbonate synthesis and electrolytes for batteries [7][8][9]. CO 2 reaction with epoxide forming cyclic carbonates has been extensively studied using different catalysts [10][11][12][13][14][15][16].…”