Ambient temperature imidazolium-based ionic liquids with tetrachloronickelate(II) anions

Paramagnetic Ionic Liquid/Metal Organic Framework Composites for CO2/CH4 and CO2/N2 Separations

“…The ZIF-8 thermogram shows a single stage of mass loss, consistent with the decomposition of 2-methylimidazole, the organic linker of ZIF-8 (James and Lin, 2016 ). The neat tetrachloro-based metal complex ILs shows two decomposition stages: the first one is related to the decomposition of the imidazolium cation(s), and the second one is consistent with the degradation of the anion (Meredith et al, 2009 ). A final constant weight stage can be found for these ILs, where element metal and metallic chloride salts are the remaining products (Meredith et al, 2009 ).…”

“…The neat tetrachloro-based metal complex ILs shows two decomposition stages: the first one is related to the decomposition of the imidazolium cation(s), and the second one is consistent with the degradation of the anion (Meredith et al, 2009 ). A final constant weight stage can be found for these ILs, where element metal and metallic chloride salts are the remaining products (Meredith et al, 2009 ). The neat [C 4 MIM] 2 [Co(NCS) 4 ] IL shows only one decomposition stage.…”

“…(1-butyl-3-methylimidazolium tetrachloroferrate, >99%) were synthesized and purified inhouse. Their synthesis protocol can be found elsewhere (Zhong et al, 2007;Meredith et al, 2009;Cruz et al, 2013). Their chemical structures are represented in Figure 1.…”

“…ILs [C 4 MIM] 2 [NiCl 4 ] (bis(1-butyl-3-methylimidazolium) tetrachloronickelate, >99%), [C 4 MIM] 2 [MnCl 4 ] (bis(1-butyl-3-methylimidazolium) tetrachloromanganate, >99%), [C 4 MIM] 2 [CoCl 4 ] (bis(1-butyl-3-methylimidazolium) tetrachlorocobaltate, >99%) and [C 4 MIM][FeCl 4 ] (1-butyl-3-methylimidazolium tetrachloroferrate, >99%) were synthesized and purified in-house. Their synthesis protocol can be found elsewhere (Zhong et al, 2007 ; Meredith et al, 2009 ; Cruz et al, 2013 ). Their chemical structures are represented in Figure 1 .…”

Ionic Liquids Facilitate the Development of Absorption Refrigeration

“…The chemical reaction between NH 3 and Zn 2+ will largely enhance the solubility of NH 3 in the absorbent and reduce the pressure of vapor phase as well as in the NH 3 -CaCl 2 system, and no defects in heat and mass transfer, swelling, or agglomeration are a problem. Some other metal cations such as Ni 2+ [13], Cu 2+ [14], and Fe 3+ [15] were also found to dissolve in ionic liquids, and thus, a family of new conceptual chemical absorption refrigeration working pairs consisting of ammonia and metal chloride-containing ionic liquids seems ready to be developed.…”