потенциал

Electrochemical activity of electrodes for electrolysis of water is investigated. As catalysts coating Ni-S-Co, suspension LaNi_2.5Co_2.4Al_0.1 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).

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).

Matrix electrodes based on copper and lead were obtained by cathode intercalation: CuBi, PbBi, CuPbBi, CuCa, PbCa, CuBiCa, PbBiCa, CuPbBiCa, their composition being identified by means of X-ray diffraction analysis and open-circuit potential measurement. The laser emission micro-spectral analysis determines the depth of penetration (% of mass) of cations of bismuth, lead and calcium into the structure of the electrodes under study.

Matrix electrodes based on copper and lead, CuCa, PbCa, CuBiCa, PbBiCa, CuPbBiCa, were obtained by cathode intercalation, their composition was identified in aprotic organic solutions of calcium salts of various anionic composition by means of X-ray phase analysis and open-circuit potential measurement.