scholarly journals Studies on Ion Exchange Membranes. IV. Electrolysis of Sodium Sulfate Solution with Three Chamber Cell Separated by Porous Ion Exchange Membrane

1961 ◽  
Vol 29 (3) ◽  
pp. E147-E155
Author(s):  
Kenichi ODA ◽  
Toshi TOMIZAWA ◽  
Takeo SAITO
Author(s):  
Eliška Stránská ◽  
Kristýna Weinertová ◽  
David Neděla ◽  
Jan Křivčík

This article focuses on the preparation of the heterogeneous ion exchange membrane with a special surface structure made with three types of knitted fabric. The special surface structure of ion exchange membranes can be useful for the intensification of mass transfer processes in electrodialysis.Three types of structured ion exchange membranes were prepared together with a membrane with a flat surface to compare the influence of geometrical structures on the behaviour of ion exchange membrane properties. Electrochemical, mechanical and physical properties were determined. Structured membranes exhibited comparable electrochemical and physical properties to the flat ion exchange membrane. Some transport parameters were measured in an electrodialysis stack with two concentrations of solution. Two electrodialysis stacks with different sizes of active area were used for comparison. Improving efficiency and mass flux was not confirmed. It was not demonstrated that structured IEMs were not better than IEMs with the flat surface.


2014 ◽  
Vol 7 (9) ◽  
pp. 2986-2998 ◽  
Author(s):  
Shuang Gu ◽  
Ke Gong ◽  
Emily Z. Yan ◽  
Yushan Yan

A redox-flow-battery cell design with multiple ion-exchange membranes is provided to enable combinations of any redox pairs and supporting electrolytes.


2019 ◽  
Vol 7 (10) ◽  
pp. 5794-5802 ◽  
Author(s):  
Xiujun Yue ◽  
Qian He ◽  
Hee-Dae Lim ◽  
Ping Liu

A hierarchically structured composite ion exchange membrane is developed to solve the trade-off between conductivity and selectivity.


Author(s):  
Eduard Borràs ◽  
Martí Aliaguilla ◽  
Laura Huidobro ◽  
Sandra Martínez-Crespiera ◽  
Sonia Matencio ◽  
...  

Abstract This chapter presents the most relevant advances achieved during the MIDES project in relation to material development of key elements for microbial desalination cells. The first section is devoted to electrodes. Providing a general overview of the requirements of carbon-based materials to serve either as anodes or cathodes for microbial desalination cells. Advances achieved during MIDES in the development of materials for anode and cathode application are listed. The second section is focussed on ion-exchange membranes for microbial desalination cells. General considerations for the use of these membranes are reported as well as key parameters. Finally, advances in ion-exchange membrane development, in terms of antifouling and their performance in desalination trials, achieved during the MIDES project, are reported.


2008 ◽  
Vol 57 (11) ◽  
pp. 1757-1762 ◽  
Author(s):  
R. A. Rozendal ◽  
T. H. J. A. Sleutels ◽  
H. V. M. Hamelers ◽  
C. J. N. Buisman

Previous studies have shown that the application of cation exchange membranes (CEMs) in bioelectrochemical systems running on wastewater can cause operational problems. In this paper the effect of alternative types of ion exchange membrane is studied in biocatalyzed electrolysis cells. Four types of ion exchange membranes are used: (i) a CEM, (ii) an anion exchange membrane (AEM), (iii) a bipolar membrane (BPM), and (iv) a charge mosaic membrane (CMM). With respect to the electrochemical performance of the four biocatalyzed electrolysis configurations, the ion exchange membranes are rated in the order AEM > CEM > CMM > BPM. However, with respect to the transport numbers for protons and/or hydroxyl ions (tH/OH) and the ability to prevent pH increase in the cathode chamber, the ion exchange membranes are rated in the order BPM > AEM > CMM > CEM.


2021 ◽  
Vol 629 ◽  
pp. 119271
Author(s):  
Jiří Charvát ◽  
Petr Mazúr ◽  
Martin Paidar ◽  
Jaromír Pocedič ◽  
Jiří Vrána ◽  
...  

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