Category: Transient Plane Source
Author(s): Abhishek Kumar Gupta, Rajendra Kumar Singh, Suresh Chandra
Keywords: crystallization, ionic liquid (IL), kinetics behavior, Pellets, Silica, Transient plane source (TPS) technique, X-ray photoelectron spectroscopy
Abstract: This study focused on the crystallization kinetics behavior of pure ionic liquid (IL) (1-ethyl-3-methylimidazolium tetrafluoro borate; EMIMBF4) as well as IL confined in mesoporous silica matrices (termed as ionogel). X-ray photoelectron spectroscopy (XPS) and transient plane source (TPS) measurements have been used to explain the slowing down of crystallization process of IL in confinement. Thermal conductivity of the IGs was measured using pellets of #IG2 and #IG3 with the transient plane source (TPS) technique. The values of thermal conductivities for the pure silica, #IG2 and #IG3 are 0.8, 1.87, 1.76 W/mK, respectively, whereas for pure ionic liquid [EMIM][BF4] it was found to be 0.2 W/mK.
Reference: Royal Society of Chemistry (2014), 4:22277-22287
DOI: 10.1039/C4RA01785D