Conversion of CO₂to value-added products mediated by ionic liquids

Abstract

The thermal, electrochemical and photochemical conversion of CO2 mediated by ionic liquids is systematically reviewed.

Facile synthesis of crystalline viologen-based porous ionic polymers with hydrogen-bonded water for efficient catalytic CO2 fixation under ambient conditions

“…1 Among various strategies for handling the above issue, the synthesis of high value-added cyclic carbonates by CO 2 cycloaddition with epoxides is one of the most efficient and atom-economic routes to achieve catalytic CO 2 xation. [2][3][4][5] To date, various homogeneous and heterogeneous catalytic systems have been developed for CO 2 conversion. [3][4][5] In general, homogeneous catalysts can exhibit high catalytic activities under mild conditions but with complicated processes of separation, purication and recycling, which would limit their practical application.…”

“…[2][3][4][5] To date, various homogeneous and heterogeneous catalytic systems have been developed for CO 2 conversion. [3][4][5] In general, homogeneous catalysts can exhibit high catalytic activities under mild conditions but with complicated processes of separation, purication and recycling, which would limit their practical application. 3,4 In contrast, heterogeneous catalysts can solve these problems, but oen the reactions are performed under high temperatures and/or CO 2 pressures to obtain the desired catalytic activities.…”

Specific Cation Adsorption: Exploring Synergistic Effects on CO2 Electroreduction in Ionic Liquids

“…Significant attention has been paid to room temperature ionic liquids (ILs) as electrolyte media for the electrochemical CO 2 reduction reaction (CO 2 RR) . ILs are known to lower the required CO 2 RR overpotential, which clearly indicates an IL‐mediated co‐catalytic effect .…”

Metal Ionic Liquids for the Rapid Chemical Fixation of CO2 under Ambient Conditions

“…[35] Moreover, some functionalized or specially designed ILs can work as both solvent and catalyst (or co-catalyst) for CO 2 chemical fixation. [36][37][38][39][40] However, the efficiencies of the IL-based routes are largely restricted, especially at mild conditions.Here we propose for the first time the utilization of metal ionic liquid (MIL) for the chemical fixation CO 2 to form cyclic carbonates at mild conditions, where MIL plays as both reaction media and catalyst. Outstandingly, propylene oxide (PO) can be converted to propylene carbonate with more than 99.0 % yield and more than 99 % selectivity at room temperature and atmospheric pressure.…”

“…[35] Moreover, some functionalized or specially designed ILs can work as both solvent and catalyst (or co-catalyst) for CO 2 chemical fixation. [36][37][38][39][40] However, the efficiencies of the IL-based routes are largely restricted, especially at mild conditions.…”