Dr. Ramesh Singh recently joined the group as a postdoctoral researcher. Ramesh will be part of the team working on the GCEP project, aimed at developing new ionic liquids for pre-combustion CO2 capture. Ramesh got his PhD working in Francisco Hung's group at LSU. Welcome, Ramesh!
Dr. Amir Vahid has joined the group as a postdoctoral researcher, working on solubility calculations in ionic liquids. Amir received his PhD working with Prof. Richard Elliott at the University of Akron. Prior to this, he received a B.Sc. in Chemical and Polymer Engineering and a M. Sc. in Chemical and Petroleum Engineering. Welcome, Amir!
Hongjun Liu published a paper along with collaborators at Savannah River National Laboratory entitled "Thermal and Transport Properties of Six Ionic Liquids: An Experimental and Molecular Dynamics Study". In the paper, experimental measurements and molecular dynamics simulations are used to determine the density, heat capacity, self-diffusivity, shear viscosity, and thermal conductivity of six ionic liquids over a range of temperatures. The ionic liquids examined are:
1-butyl-3-methylimidazolium bis[(perfluoroethyl)sulfonyl]imide ([bmim][Pf2N]), 1-butyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide ([bmim][Tf2N]), 1-butyl-2,3-dimethylimidazolium bis[(trifluoromethyl)sulfonyl]imide ([bmmim][Tf2N]), 1-butyl-1-methylpyrrolidinium bis[(trifluoromethyl)sulfonyl]imide ([bmpyr][Tf2N]), N-butyl-N,N,N-trimethylammonium bis[(trifluoromethyl)sulfonyl]imide ([N4111][Tf2N]), and N,N,N-trimethylammonium-N-butanoic acid bis[(trifluoromethyl)sulfonyl]imide ([N4111][COOHTfN]).
The results of this work suggest that several of these ionic liquids have properties that would enable them to be successful high temperature heat transfer fluids. In particular, their energy storage densities and thermal conductivities are quite favorable when compared to conventional heat transfer fluids.