THE EFFECT OF ELECTROCHEMICAL OXYGEN PUMPING ON THE RATE OF CO OXIDATION ON AU ELECTRODE-CATALYST

The effect of electrochemical pumping of oxygen on the rate of carbon monoxide oxidation on Au electrode-catalyst in a solid oxygen conducti ng electrolyte cell has been demonstrated. The induced change in the r eaction rate at the cathodic polarization of an Au electrode was an or der of magnitude higher than the rate of O2- pumping from the reaction zone through the electrolyte. The anodic polarization of the Au elect rode (O2- pumping to the reaction zone through the electrolyte) caused purely Faradaic changes in the reaction rate.