Synthesis of Ionic Liquids as Novel Nanocatalysts for Fixation of Carbon Dioxide with Epoxides by Using a Carbon Dioxide Balloon
作者:Pu Zhang、Rahele Zhiani
DOI:10.1007/s10562-020-03135-w
日期:2020.8
Abstract In the present study, the nanocatalyst of imidazolium based ionic liquids (ILs) is synthesized for the fixation of carbondioxide (CO 2 ) under moderate conditions by utilizing a balloon of CO 2 with commercially available epoxides. IL incorporated porous dendritic fibrous nanosilica (DFNS) catalyst (IL/DFNS) was designed and synthesized. The synthesized catalyst was characterized using N
摘要 在本研究中,合成了咪唑基离子液体 (ILs) 的纳米催化剂,用于在温和条件下利用 CO 2 气球与市售环氧化物固定二氧化碳 (CO 2 )。设计并合成了掺入 IL 的多孔树枝状纤维状纳米二氧化硅 (DFNS) 催化剂 (IL/DFNS)。合成的催化剂使用 N 2 吸收解吸等温线、XPS、SEM、EDX、TGA、HR-TEM 和 AFM 进行表征。对于环状碳酸酯,多孔 IL/DFNS 的环保催化剂在温和条件下从 CO 2 到 CO 2 固定和环氧化物显示出令人印象深刻的催化效率。IL 框架的极性羟基和阴离子交换性质基团具有高表面积被认为是提高催化效率和提高催化剂稳定性的主要方面,并提供适当的可回收性。图形摘要
Cyclic Carbonate Synthesis Catalysed by Bimetallic Aluminium-Salen Complexes
作者:William Clegg、Ross W. Harrington、Michael North、Riccardo Pasquale
DOI:10.1002/chem.201000030
日期:——
aluminium–salen complexes [Al(salen)}2O] as catalysts for the synthesis of cycliccarbonates (including the commercially important ethylene and propylene carbonates) from a wide range of terminal epoxides in the presence of tetrabutylammonium bromide as a cocatalyst is reported. The bimetallic structure of one complex was confirmed by X‐ray crystallography. The bimetallic complexes displayed exceptionally high
Homogeneous and immobilized one-component catalysts for the conversion of epoxides and carbon dioxide into cyclic carbonates at atmospheric pressure and room temperature have been developed.
已开发出用于在常压和室温下将环氧化物和二氧化碳转化为环碳酸酯的均相和固定化的一体化催化剂。
A heteropolyacid-based ionic liquid immobilized onto fibrous nano-silica as an efficient catalyst for the synthesis of cyclic carbonate from carbon dioxide and epoxides
作者:Seyed Mohsen Sadeghzadeh
DOI:10.1039/c5gc00377f
日期:——
A heteropolyacid-based ionicliquid immobilized onto fibrous nano-silica as an efficient catalyst for the synthesis of cycliccarbonatefromcarbondioxide and epoxides.
A heteropolyacid-based ionic liquid immobilized onto Fe3O4/SiO2/Salen/Mn as an environmentally friendly catalyst for synthesis of cyclic carbonate
作者:Seyed Mohsen Sadeghzadeh
DOI:10.1007/s11164-015-2151-x
日期:2016.3
Magnetite-polyoxometalate hybrid nanomaterials, Fe3O4/SiO2/Salen/Mn/IL/HPW (MNPs-HPW), was prepared by grafting of H3PW12O40 on the ionic liquid-functionalized Fe3O4 magnetite nanoparticles. This catalyst is a recoverable catalyst for the one-pot synthesis of cyclic carbonate derivatives in high to excellent yield under solvent-free conditions. The MNPs-HPW catalyst was characterized via Fourier transform infrared spectroscopy, X-ray diffraction, thermal gravimetric analysis, transmission electron microscopy, and a vibrating sample magnetometer. Moreover, the catalyst could be easily recovered by magnetic separation and recycled for ten times without significant loss of its catalytic activity.