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Electro-electrodialysis Using the Radiation-treated Cation Exchange Membrane by Accelerated Electron Radiation to Concentrate HI from HIx Solution  

Hwang, Gab-Jin (Dept. Hydrogen & Fuel Cell, Korea Institute of Energy Research)
Kim, Jeong-Keun (Dept. Hydrogen & Fuel Cell, Korea Institute of Energy Research)
Lee, Sang-Ho (Dept. Hydrogen & Fuel Cell, Korea Institute of Energy Research)
Choi, Ho-Sang (Dep. Chemical Engineering, Kyungil Univ.)
Publication Information
Membrane Journal / v.17, no.4, 2007 , pp. 338-344 More about this Journal
Abstract
Electro-electrodialysis of hydriodic acid with HI molality of ca. 9.5 $mol/kg-H_2O$ was examined in the presence of iodine using a commercial cation exchange membrane, CMB, as a separator. For the increase of the selectivity of proton permeation, the membrane was radiation-treated by accelerated electron radiation. The membrane properties (area resistance, ion exchange capacity, water content) of the radiation-treated membranes were measured. The area resistance in 2 $mol/dm^3$ KCl solution, ion exchange capacity and water content of the radiation-treated membranes at each dose rate dad almost the same value as that of the non-treated membrane (original of CMB membrane). Electro-electrodialysis of hydriodic acid with HI molality of ca. 9.5 $mol/kg-H_2O$ was examined at $75^{\circ}C$ with 9.6 $A/dm^2$. The radiation-treated cation exchange membrane by accelerated electron radiation had higher selectivity of the proton permeation by cross-linking structure of polymer than that of the non-treated membrane.
Keywords
electro-electrodialysis; cation exchange membrane; cross-linking; irradiation; thermochemical hydrogen production;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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