ISSN 1608-4039 (Print)
ISSN 1680-9505 (Online)


For citation:

Kryukov Y. I., Lukovtsev V. I., Petrenko E. M. Development of the effective ways of the activation of the anodes for water electrolysis. Electrochemical Energetics, 2012, vol. 12, iss. 1, pp. 39-41. DOI: 10.18500/1608-4039-2012-12-1-39-41, EDN: PEVRXT

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Russian
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Article
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PEVRXT

Development of the effective ways of the activation of the anodes for water electrolysis

Autors: 
Kryukov Yu. I., Institute of Physical Chemistry and Electrochemistry of A. N. Frumkina of RAS
Lukovtsev V. I., Institute of Physical Chemistry and Electrochemistry of A. N. Frumkina of RAS
Petrenko Elena Mikhailovna, Institute of Physical Chemistry and Electrochemistry of A. N. Frumkina of RAS
Abstract: 

Electrochemical activity of anodes on the basis of a nickel mesh grid for water electrolysis is investigated. Activation of anodes was made by three ways:
1) chemical covering sulfur-containing compounds of nickel and iron;
2) immersing in solution Na2S2O3 + H2SO4 (till pH=3);
3) immersing in solution Na2S + H2SO4 (till pH=3).
The water solution 6M KOH was used as the electrolyte while the electrodes testing. Current density varied in a range from 1 to 600 mAJ cm2 at temperature 20, 50 and 70°C. The greatest electrochemical activity have anodes activated by the third method. The anode potential at current density 600 mA/cm2 and temperature 70°C is equal +0.57 V (concerning Hg/HgO – the comparison electrode).

Reference: 

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Received: 
28.02.2012
Accepted: 
28.02.2012
Published: 
31.03.2012