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Electrochemical characterization of porous diaphragms in development for gas separation

Stojadinović, J. ; Wiedenmann, Daniel ; Gorbar, M. ; Mantia, F. La ; Suarez, L. ; Herzog, V. Zakaznova ; Vogt, U. F. ; Grobéty, Bernard ; Züttel, Andreas

In: ECS Electrochemistry Letters, 2012, vol. 1, no. 4, p. F25-F28

The alkaline electrolyzer industry is facing the imminent necessity of replacing the asbestos diaphragms with a separator made of a new environmentally friendly material. The influence of a diaphragm's material and porosity on the ionic conductivity was studied for asbestos, zirconium dioxide, wollastonite and olivine diaphragms. Developed electrochemical impedance spectroscopy (EIS) set-up with...