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Abstract

Diaphragms being of high mechanical and chemical stability were developed which are very thin (0.2mm) and exhibit low surface resistances (0.2 OMEGA cm**2) together with high gas separation ability. These diaphragms are made of a highly porous oxide ceramic material (alkaline earth titanate) which is supported by a woven nickel net. The corrosion of the metal screen is safely prevented under operation condition of the electrolyzer by a steady flow of H-2 saturated electrolyte across the diaphragm. The stability of the oxide ceramics is established by its thermodynamic stability and its low solubility in caustic potash. It is possible to produce integrated electrode diaphragm sandwiches from these diaphragms by applying highly porous nickel layers on their faces by relatively simple sinter techniques.

Additional information

Authors: WENDT H, INSTITUT FUER CHEMISCHE TECHNOLOGIE, DARMSTADT (GERMANY);HOFMANN H INSTITUT FUER CHEMISCHE TECHNOLOGIE, DARMSTADT (GERMANY), INSTITUT FUER CHEMISCHE TECHNOLOGIE, DARMSTADT (GERMANY)
Bibliographic Reference: 5TH WORLD HYDROGEN ENERGY CONFERENCE, TORONTO (CANADA), JULY 15-20, 1984 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 31389 ORA
Availability: Can be ordered online
Record Number: 1989122056800 / Last updated on: 1987-01-01
Category: PUBLICATION
Available languages: en