THE CATALYTIC ACTIVITY OF SILVER AND COPPER DEPOSITED ON COMPLEX CARBIDE <i>(Ti, W)C</i>
To study the catalytic activity of nano-dispersed silver and copper deposited on complex carbide (Ti, W) C, the intramolecular oxidation-reduction reaction of iodine was chosen as a model reaction. The kinetics of this reaction was studied by spectrophotometry by changing the optical density of the solution over time. To compare the catalytic activity of metals deposited on complex carbide (Ti, W)C, the kinetics of this reaction was also studied in the presence of copper nanopowder synthesized by the reduction of copper ions with hydrazine in ammonia. From the dependence of the optical density of I2 solutions on time, it was found that of the metals deposited on complex carbide (Ti, W)C, copper has a higher catalytic activity for this reaction. When the temperature rises from 23°C to 50°C in the presence of copper deposited on complex carbide, the reaction rate increases 2.7 times. From the dependence of the reaction rate constant on temperature, the activation energy of this reaction was calculated.