Poly(ionic liquid)-Modified Metal Organic Framework for Carbon Dioxide Adsorption

Abstract

The design and synthesis of solid sorbents for effective carbon dioxide adsorption are essential for practical applications regarding carbon emissions. Herein, we report the synthesis of composite materials consisting of amine-functionalized imidazolium-type poly(ionic liquid) (PIL) and metal organic frameworks (MOFs) through complexation of amino groups and metal ions. The carbon dioxide adsorption behavior of the synthesized composite materials was evaluated using the temperature-programmed desorption (TPD) technique. Benefiting from the large surface area of metal organic frameworks and high carbon dioxide diffusivity in ionic liquid moieties, the carbon dioxide adsorption capacity of the synthesized composite material reached 19.5 cm3·g−1, which is much higher than that of pristine metal organic frameworks (3.1 cm3·g−1) under carbon dioxide partial pressure of 0.2 bar at 25 °C. The results demonstrate that the combination of functionalized poly(ionic liquid) with metal organic frameworks can be a promising solid sorbent for carbon dioxide adsorption.

Anchoring Ionic Liquid in Copper Electrocatalyst for Improving CO2 Conversion to Ethylene

“…[27,28] For the N 1s XPS spectrum of the IL@Cu catalyst (Figure 2c), there is a peak at a binding energy of 398.7 eV, which can be ascribed to CuÀ N. [29] The peaks centered at 400.5 and 401.7 eV correspond to CÀ N and C=N bonding on the imidazole rings of BmimNO 3 . [30,31] No signal was observed in this energy range for the Cu catalyst (Figure 2c).…”

Polycarbene-bearing membrane surface containing silver species for size and charge selective molecular separation

“…S6†). The M1 and M2 membranes demonstrated the presence of PIL by displaying peaks at 400 and 401.7 eV, 60,61 corresponding to nitrogen (N1s) originating from the imidazole ligands. 62…”

“…S6 †). The M1 and M2 membranes demonstrated the presence of PIL by displaying peaks at 400 and 401.7 eV, 60,61 corresponding to nitrogen (N1s) originating from the imidazole ligands. 62 The most extensively utilized technique for the characterization of nanoparticle-bonded membrane surfaces is UV-vis-DRS spectroscopy.…”

Anchoring Ionic Liquid in Copper Electrocatalyst for Improving CO2 Conversion to Ethylene

“…For the N 1s XPS spectrum of the IL@Cu catalyst (Figure 2c), there is a peak at a binding energy of 398.7 eV, which can be ascribed to Cu−N [29] . The peaks centered at 400.5 and 401.7 eV correspond to C−N and C=N bonding on the imidazole rings of BmimNO 3 [30, 31] . No signal was observed in this energy range for the Cu catalyst (Figure 2c).…”