STUDY OF WOLFRAM CARBIDE CATHODE USED
FOR WATER
ELECTROLYSIS
Continuous cathodic electrolysis,
of a cobalt coated widia electrode in a saturated NaOH aqueous solution, was carried
out to assess the electrode’s durability. The electrode’s potential under the
same operation conditions was exponentialy dependent of the current density.
A
cobalt widia coated electrode shows little variation in hydrogen evolution
potential, during constant current electrolysis in an
NaOH solution.
We found out that Co/widia,
used as hydrogen electrode, lowers the electric energy costs and increases both
of electrolyzer’s efficiency and the hydrogen production.
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