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

For citation:

Kryukov Y. I., Lukovtsev V. P., Petrenko E. M. Electrochemical activity of the electrodes with electrocatalytic coatings. Electrochemical Energetics, 2011, vol. 11, iss. 4, pp. 184-186. DOI: 10.18500/1608-4039-2011-11-4-184-186, EDN: OWWFUL

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: 
Fuel cells
Article type: 
Article
DOI: 
10.18500/1608-4039-2011-11-4-184-186
EDN: 
OWWFUL

Electrochemical activity of the electrodes with electrocatalytic coatings

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: 

Electrochemical activity of electrodes for electrolysis of water is investigated. As catalysts coating Ni-S-Co, suspension LaNi2.5Co2.4Al0.1 or their combinations were applied. As electrolyte at test of electrodes 30% KOH or NaOH is used. Current density varied in a range from 10 to 600 мА/cm2 at temperature 20-80°C. When the temperature increases from 20 to 80°C the current density on cathodes with composite LaNi2.5Co2.4Alo.i/Ni-S-Co catalyst increases 4 times at constant potential E = –1.10 V (rel. Hg/HgO). When the current density of more than 100 mA/cm2 cathodes with all catalysts offered by us in this work have lower value of potential than the similar cathodes described in the scientific literature. In contrast to the cathodes, catalyst LaNi2.5Co2.4Al0.1/Ni–S–Co does not render influence on electrochemical activity of the anode.

Key words: 
электрохимическая активность
плотность тока
потенциал
электролиз воды
катализатор
Reference: 

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Received: 
25.11.2011
Accepted: 
25.11.2011
Published: 
25.12.2011