Polarization phenomena at the interfaces between an electrolyte solution and an ion exchange membrane. Part II. Ion transfer with an anion exchange membrane

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Output type: Journal article

UM6P affiliated Publication?: No

Author list: Taky M., Pourcelly G., Gavach C.

Publication year: 1992

Journal: Journal of Electroanalytical Chemistry (0022-0728)

Volume number: 336

Issue number: 1-2

Start page: 195

End page: 212

Number of pages: 18

ISSN: 0022-0728

URL: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0001654685&origin=inward

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Polarization phenomena occurring with ion exchange membranes have been investigated for the Selemion AMV anion exchange membrane in contact with NACl solutions. Recording of the current density-voltage responses combined with pH measurements and with individual ion flux measurements allow the determination of which phenomena are at the basis of the current transport. The concentration and potential profiles within the depleted unstirred layer have been calculated. Water splitting is indicated beyond the limiting current density. Analysis of the different overvoltages leads to a comparison between the interfacial transfer overvoltages of both the AMV anion exchange membrane and the CMV cation exchange membrane. © 1992.


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