Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 7, 2011
Previous Article Next Article

The molecular characteristics dominating the solubility of gases in ionic liquids

Author affiliations

Abstract

This critical review provides a critical discussion of the current state of knowledge of the key factors influencing the solubility of gases in ionic liquids (ILs), including sample purity, experimental methodology, “molecular” characteristics of ILs, temperature and pressure. The review starts with a brief introduction to the current developments and the existing problems in the studies of the gas solubility in ILs. Then, the experimental, computational and theoretical developments in conformational equilibria of ions, in nanosegregated polar and nonpolar domains in ILs, and in the mechanisms for dissolution of gases in ILs are discussed and subsequently collaborated together with our freeze-fracture transmission electron microscopic and Raman measurements to propose the new microscopic mechanism for dissolving the gases in ILs. Next, a critical and quantitative analysis of the influences of the sample purity and the experimental methodology on the gas solubility is made so that the “real” relationships between structure and solubility property can be revealed. In addition, a systematic and deeper understanding of how the “molecular” features of the ILs, the temperature, and the pressure influence the gas solubility is provided at the molecular level. In the section of concluding remarks, the comments are made on the molecular criteria for the future design of the ILs to enhance the gas solubility by specifically optimizing the molecular characteristics of the ILs (265 references).

Graphical abstract: The molecular characteristics dominating the solubility of gases in ionic liquids

Back to tab navigation

Supplementary files

Article information


Submitted
09 Jun 2010
First published
17 Mar 2011

Chem. Soc. Rev., 2011,40, 3802-3823
Article type
Critical Review

The molecular characteristics dominating the solubility of gases in ionic liquids

Y. Hu, Z. Liu, C. Xu and X. Zhang, Chem. Soc. Rev., 2011, 40, 3802
DOI: 10.1039/C0CS00006J

Social activity

Search articles by author

Spotlight

Advertisements