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

For citation:

Kryukov Y. I., Lukovtsev V. P., Petrenko E. M. Electrochemical activity of the cathodes with chemical coatings Ni-S-Fe. Electrochemical Energetics, 2010, vol. 10, iss. 4, pp. 214-216. DOI: 10.18500/1608-4039-2010-10-4-214-216

This is an open access article distributed under the terms of Creative Commons Attribution 4.0 International License (CC-BY 4.0).
Language: 
Russian
Heading: 
Hydrogen energy
Article type: 
Article
UDC: 
541.135.5
DOI: 
10.18500/1608-4039-2010-10-4-214-216

Electrochemical activity of the cathodes with chemical coatings Ni-S-Fe

Autors: 
Kryukov Yu. I., Institute of Physical Chemistry and Electrochemistry of A. N. Frumkina of RAS
Lukovtsev Vyacheslav Pavlovich, 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: 

The electrochemical activity of nickel mesh cathodes activated by electrocatalysts of chemically deposited coatings Ni-S-Fe is investigated. The maximum reduction of overvoltage at current density 6 kA/m2 and temperature 70°C is 0.34 V. Comparison of the electrochemical activity of such cathodes with similar cathodes described in the scientific literature revealed that at the same temperature and same overvoltage the current density is twice higher than for the known electrodes. It is shown that with increasing temperature from 20 to 90°C overvoltage at the current density 4kA/m2 reduced by 110mV. Testing of the electrodes with electrocatalysts Ni-S-Fe in the laboratory electrolyser for 850 hours of continuous operation at current density 12kA/m2 indicate the stability of their electrochemical activity.

Key words: 
electrochemical activity
cathode
chemical coating
overvoltage
current density
potential
water electrolysis
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Received: 
19.04.2010
Accepted: 
19.04.2010
Published: 
27.12.2010