The effect of corrugated membranes on salt splitting

Tzanetakis, N.; Taama, W. M.; Scott, K.; Jachuck, R. J. J.
May 2003
Journal of Applied Electrochemistry;May2003, Vol. 33 Issue 5, p411
Academic Journal
An investigation of the electrohydrolysis of sodium sulfate using a corrugated Nafion® 117 membrane is reported. A comparison of the performance of a flat and corrugated Nafion® 117 in a two-compartment membrane electrolysis cell is made. Corrugating the membrane increased the active membrane area by 57% compared to the projected area. The effect of flow rate, current density and salt concentration on current efficiencies, transport properties and achievable product concentrations are presented. The results show a large improvement on transport properties, current efficiencies and product formation using corrugated membranes. Corrugated membranes gave an improvement of up to 77% on achievable base concentration and an increase of approximately 22% in current efficiency.


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