DIAPHRAGMS FOR MEDIUM TEMPERATURE ADVANCED WATER ELECTROLYSIS
A new type of diaphragm has been developed by SCK/CEN-Sodeteg for use in the advanced alkaline water electrolysis at medium temperature, up to about 200 degrees C. This new type of diaphragm is based on a combination of zirconium oxide and polytetrafluoroethylene as prepared by the low temperature rolling manufacturing technique. Commercially attractive dimensions have been realized whereby the thickness, density and porosity of the diaphragms were not affected by the upscaling. Chemical stability measurements as well as tests under real electrolysis conditions at 160 degrees C and 10 kAm**-2, respectively for 2,000 and 4,000 hours, confirm the stability of these diaphragms. Under these working conditions an excellent value for the resistance of R-M = 0.17 OMEGA cm**2 has been obtained for 4,000 hours.
Bibliographic Reference: EUR 9717 EN (1985) MF, 36 P., BFR 150, BLOW-UP COPY BFR 180, EUROFFICE, LUXEMBOURG, POB 1003
Availability: Can be ordered online
Record Number: 1989123055700 / Last updated on: 1987-01-01
Available languages: en