EXTRACTION OF ELECTRODE MATERIALS BASED ON MODIFICATION OF MOLYBDENUM AND HUMIC SUBSTANCES

This work is a study of the interaction between the molybdenum Ion and humic acid extracted from the brown coal deposits of Ekibastuz region.

From the humin extracted from the deposit, humic acid is synthesized, which is then placed in a solution of the molybdenum ion, after a day it is dried and a system of humic acid and molybdenum is obtained.

Ion exchange or complex coupling showed that the appearance of new bands in the IR spectrum and changes in absorption bands are caused by stretching or deformation of zones with double OH and C-H bonds. This allowed us to determine that the interaction of humic acid (HA) and molybdenum ions occurs through the mechanism of ion or electron-donor complexation.

In stationary glass, a carbon electrode was used, on the surface of which various compounds were transformed and their electrochemical properties were studied.

The results of electrochemical studies of the humic acid-molybdenum system were carried out by the method of cyclic voltammetric (CVA) analysis. The results of the study showed the presence of an interaction between humic acid and molybdate ions. The pH effect was also considered in electrochemical studies. In this case, the electrochemical activity of oxide compounds of immobilized molybdenum or molybdenum on the surface of the electrode shows the possibility of its application in the implementation of electrocatalytic reactions by means of modified electrodes.

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