Two-length scale description of hydrophobic room-temperature ionic liquid–alcohol systems

CO<sub>2</sub> Capture at Room Temperature and Ambient Pressure: Isomer Effect in Room Temperature Ionic Liquid/Propanol Solutions

“…As additive effect, isomer effects of alcohols in the RTILs were observed distinctly [14]- [17]. A previous study estimated the molecular interactions between RTILs and propanol on desorption time measured under vacuum [14].…”

“…In [N4111][TFSI]-propanol system, however, there is a problem of phase separation in the propanol-rich region. [TFSI]-propanol system was constructed based on visual cloud-point determinations [14] [15] [17]. The cloud-points of 1-and 2-based mixtures are represented by red and blue closed circles, respectively.…”

“…C 1 and C 2 conformers of TFSI − originate from the competition between the alkyl side-chain length of the C n mim + cation and the propanol isomer effect. Recently, butanol isomer effect was reported in [C n mim][TFSI]-based systems with four types of butanol [17], owing to the different hydrophobicities of four types of butanol. The upper critical solution temperatures (UCSTs) in the phase diagrams were clearly separated with increasing alkyl side-chain length of the C n mim + cation.…”

Anomalous Freezing of Nano‐Confined Water in Room‐Temperature Ionic Liquid 1‐Butyl‐3‐Methylimidazolium Nitrate

“…In order to distinguish between amorphous ice and crystal ice in the water pocket inside [C 4 mim][NO 3 ], we carried out in situ observations using simultaneous X‐ray diffraction and DSC (SmartLab, Rigaku Co.) . In the simultaneous measurements, ranges of temperature and cooling/heating rate are −100 to 350 °C and 0.5 to 10 °C min −1 , respectively.…”

“…In order to distinguish between amorphous ice and crystal ice in the water pocket inside [C 4 mim][NO 3 ], we carried out in situ observations using simultaneous X-ray diffraction and DSC (SmartLab, Rigaku Co.). [27] In the simultaneous measurements, ranges of temperature and cooling/heating rate are À100 to 350 8Ca nd 0.5 to 10 8Cmin À1 ,r espectively.F or liquid samples, it is essential that the sample stage on av ertical goniometer is maintained horizontal. The DSC is attached onto the goniometer.D ry nitrogen gas flowed inside the DSC at 20 cc min À1 .F or the simultaneous measurements, Cu K a radiation (l = 1.542 ) was selected.…”