C - Chemistry – Metallurgy – 25 – B
Patent
C - Chemistry, Metallurgy
25
B
204/192
C25B 11/10 (2006.01) C25B 11/04 (2006.01)
Patent
CA 1191815
-1- 'HIGHLY POROUS ELECTRODES HOT PRESSED FROM NICKEL POWDER FOR ALKALINE WATER ELECTROLYSERS' ABSTRACT OF THE DISCLOSURE The invention concerns a highly porous electrode of special construction and hot-pressed or sintered from nickel powder with the addition of a catalyst and a method for its manufacture. The electrode is characterised by catalytic promotion and long term stabilisation by means of an addition of Ti and/or the formation of a surface layer of a stable mixed Ni-Ti oxide so that, when it is used for the electrolysis of water in alkaline electrolytes, the production of the gases of electrolysis takes place with the lowest possible polarisation even at high current densities and that it retains its catalytic properties even at high temperatures of the electrolyte or during long times of operation. Because of its favourable properties, the use of the electrode is not limited to water electrolysis technology but is also possible in other technical fields of application such as, for example, the electrolysis of alkali chlorides or the hardening of fats. The electrode can be used both as an anode and a cathode.
397239
Brennecke Peter
Ewe Henning
Justi Eduard W.
Ridout & Maybee Llp
Schnapka Herbert
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