Hydrogen-evolution electrode and a method of producing the same

Details Hydrogen-evolution electrode and a method of producing the same Hydrogen-evolution electrode and a method of producing the same

1988-03-03

1989-06-13

Niebling, John F.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204291, C25B 1104

Patent

active

048390151

ABSTRACT:
A hydrogen-evolution electrode comprising an electrically conductive substrate having thereon a coating comprising a chromium component, a titanium component and an oxide of at least one metal selected from the group consisting of nickel and cobalt, said chromium component and titanium component being present in proportions, in terms of atomic percentage, of 0.5 to 40% and 0.1 to 10%, respectively. The titanium component retards the dissolution rate of the chromium component. Accordingly, the electrode has a life several times as long as that of the conventional electrodes, and can exhibit an advantageously low hydrogen overvoltage for a prolonged period of time. Also, the electrode can be advantageously employed to produce an alkali product improved in purity. Such a hydrogen-evolution electrode can be produced by melt-spraying onto a substrate a mixture of a finely divided powder of at least one member selected from the first group consisting of nickel, nickel compounds, cobalt and cobalt compounds, a finely divided powder of at least one member selected from the second group consisting of chromium and chromium compounds and a finely divided powder of at least one member selected from the third group consisting of titanium and titanium compounds. In the production, when the above-mentioned mixture is subjected to granulation and the obtained granules are melt-sprayed, there can be obtained the desired electrode having excellent properties with respect to catalytic activity and durability in high spraying yield.

REFERENCES:
patent: 4055476 (1977-10-01), Benezra et al.
patent: 4105516 (1978-08-01), Martinsons et al.
patent: 4243497 (1981-01-01), Nicolas et al.
patent: 4255247 (1981-03-01), Oda et al.
patent: 4358353 (1982-11-01), Bommaraju et al.
patent: 4394231 (1983-07-01), Nicolas
patent: 4414064 (1983-11-01), Stachurski et al.
patent: 4422920 (1983-12-01), Stachurski et al.
patent: 4426269 (1984-01-01), Brown et al.
patent: 4436599 (1984-03-01), Bissot et al.
patent: 4447302 (1984-05-01), Brennecke et al.
patent: 4605484 (1986-08-01), Shiroki et al.

Affiliated with

Also associated with

Rating

Hydrogen-evolution electrode and a method of producing the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydrogen-evolution electrode and a method of producing the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydrogen-evolution electrode and a method of producing the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1275312