ChemInform Abstract: Sodium Salt‐Splitting Performance of a Novel Ceramic‐Polymer Composite Cation‐Selective Membrane.

Abstract

Sodium Salt-Splitting Performance of a Novel Ceramic-Polymer Composite Cation-Selective Membrane.-The Na + /H + selectivity of a polymeric cation-exchange membrane can be enhanced by the deposition of a NASICON-like Na 1+x Zr 2 SixP 3−x O 12 (0 ≤ x ≤ 3) ceramic thin film on its surface. Optimal current efficiencies for the production of NaOH from Na 2 SO 4 in an electrolysis cell are obtained when the ceramic layer thickness on R-4010 polymeric membranes is in the 70-100 nm range. A discussion of how the technique of film deposition affects the base current efficiency is given. -(CORMIER, L. M.; MA, F.; BAH, S. T.; GUETRE, S.; MEUNIER, M.; PALEOLOGOU, M.; YELON, A.; J. Electrochem. Soc. 149 (2002) 1, D21-D26; Dep. Eng. Phys., Ec. Polytech., Montreal, Que. H3C 3A7, Can.; EN)