RIS ID
116012
Abstract
This study develops a novel method to remove the free cations created during the synthesis of ionic liquid. The cations are removed from the ionic liquid by size-selective adsorption onto chemically surface-modified Zeolite. The porous crystal nano-structure of Zeolite has several electron-rich Al sites to attract cations. While large cations of an ionic liquid cannot access the Zeolite nano-structure, small cations like Na+ have ready access and are adsorbed. This study confirms that: Na+ can be removed from ionic liquid effectively using Zeolite; and, in contrast to the conventional and extensively applied ion exchange resin method or solvent extraction methods, this can be done without changing the nature of the ionic liquid.
Publication Details
Cho, W., Seo, Y., Jung, S. Jae., Lee, W. Gil., Kim, B. Chul., Mathieson, G. & Yu, K. (2013). Removal of Na+ from Ionic Liquids by Zeolite for High Quality Electrolyte Manufacture. Bulletin of the Korean Chemical Society, 34 (6), 1693-1697.