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García Villaluenga, Juan Pedro and Somovilla, Pilar and Barragán García, Vicenta María and Izquierdo Gil, María Amparo (2016) Experimental determination of the streaming potential across cation-exchange membranes with different morphologies. Journal of Membrane Science (500). pp. 16-24. ISSN 0376-7388
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Official URL: http://dx.doi.org/10.1016/j.memsci.2015.11.030
Abstract
Liquid uptake and streaming potential have been determined in aqueous sodium chloride solutions for five different commercial sulfonated polymer cation-exchange membranes. The selected membranes have distinct morphologies and electrochemical properties. Differences in the liquid uptake properties of the membranes have been found, which have been analysed on the basis of the structure and the chemical properties of the membranes. In most of the membranes analyzed, the higher the liquid content of the membranes, the lower the effective concentration of fixed charges in the membranes. The streaming potential across the membranes increases linearly with the established pressure difference, and it is larger in heterogeneous membranes than in homogeneous ones. In general, the higher the membrane liquid content, the higher the streaming potential across the membranes.
Item Type: | Article |
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Additional Information: | © 2016 Journal of Membrane Science. |
Uncontrolled Keywords: | Electro-kinetic phenomena; Non-equilibrium thermodynamics; Cation-exchange membranes |
Subjects: | Sciences > Physics Sciences > Physics > Thermodynamics |
ID Code: | 35068 |
Deposited On: | 20 Jan 2016 19:22 |
Last Modified: | 20 Jan 2016 19:22 |
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