Water Dissociation Effects in Ion Transport Through Anion Exchange Membranes with Thin Cation Exchange Surface Films

1991 ◽  
Vol 95 (4) ◽  
pp. 499-503 ◽  
Author(s):  
P. Ramírez ◽  
J. A. Manzanares ◽  
S. Mafé
Keyword(s):  
Ion Transport ◽  
Cation Exchange ◽  
Anion Exchange ◽  
Water Dissociation ◽  
Surface Films ◽  
Anion Exchange Membranes ◽  
Exchange Surface

Rigid crosslinkers towards constructing highly-efficient ion transport channels in anion exchange membranes

2021 ◽  
Vol 619 ◽  
pp. 118806
Author(s):  
Chuan Hu ◽  
Xiuli Deng ◽  
Xuecheng Dong ◽  
Yanzhen Hong ◽  
Qiugen Zhang ◽  
...  
Keyword(s):  
Ion Transport ◽  
Anion Exchange ◽  
Anion Exchange Membranes ◽  
Highly Efficient ◽  
Transport Channels

scholarly journals Alkali Attack on Cation-Exchange Membranes with Polyvinyl Chloride Backing and Binder: Comparison with Anion-Exchange Membranes

Membranes ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 228 ◽  
Author(s):  
Shoichi Doi ◽  
Nobuya Takumi ◽  
Yuriko Kakihana ◽  
Mitsuru Higa
Keyword(s):  
Cation Exchange ◽  
Anion Exchange ◽  
Polyvinyl Chloride ◽  
Chemical Structure ◽  
Immersion Test ◽  
Ion Concentration ◽  
Membrane Properties ◽  
Anion Exchange Membranes ◽  
Alkali Solutions ◽  
Exchange Membrane

Systematic alkali immersion tests of cation-exchange membranes (CEM) with polyvinyl chloride (PVC) as their backing and binder were conducted to compare that of an Anion-exchange membrane (AEM) with the same PVC materials to investigate the mechanism of dehydrochlorination. In the immersion tests, originally colorless and transparent AEM turned violet, and chemical structure analysis showed that polyene was produced by the dehydrochlorination reaction. However, the CEM did not change in color, chemical structure or membrane properties during the test with less than 1M alkali solutions. According to the Donnan equilibrium theory and the experiments using CEM and AEM, the hydroxide ion concentration in the CEM was much lower than that in the AEM under the same conditions. However, when the alkali immersion test was performed using the CEM under more severe conditions (6 M for 168 h at 40 °C), there was a slight change in the color and chemical structure of the CEM, clearly indicating that not only AEMs, but also CEMs with PVC matrixes were deteriorated by alkali, depending on the conditions.

Transfer of electrolyte ions and water dissociation in anion-exchange membranes under intense current conditions

2012 ◽  
Vol 48 (6) ◽  
pp. 650-659 ◽  
Author(s):  
V. I. Zabolotskii ◽  
V. V. Bugakov ◽  
M. V. Sharafan ◽  
R. Kh. Chermit
Keyword(s):  
Anion Exchange ◽  
Water Dissociation ◽  
Anion Exchange Membranes
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