In this paper, the advantages of the laser electrodispersion (LED) method for the synthesis of highly active crust-type catalysts containing coatings of amorphous Pd and Pt nanoparticles are demonstrated. Using examples of complete and selective oxidation of CO (CO-TOX and CO-PROX) under different conditions, a comparative analysis of recently obtained data on the structure and catalytic behavior of highly dispersed Pd and Pt nanoparticles deposited on carbon, oxide and aluminosilicate supports using the LED method was carried out. The properties of such samples with reduced metal content (down to 10 wt %) are compared with the characteristics of supported catalysts prepared by the standard impregnation method. The structure features and catalytic behavior of LED catalysts caused by the highly dispersed and amorphous state of metal nanoparticles are revealed.
S.A. Gurevich (Wed,) studied this question.