“…Due to their properties, copper nanoparticles are used in heat transfer systems, 1 as sensor elements, 2 as components of materials with antimicrobial activity 3,4 and in many other areas, primarily catalysis. [5][6][7][8][9][10][11][12][13] The practical interest in copper nanoparticles is due to the relatively low cost of raw materials and quite simple synthesis methods. 5 Due to their low cost, copper nanoparticles can successfully replace catalysts based on noble and transition metals in the Heck and Sonogashira reactions, 14,15 as well as in reactions with the formation of C-S, C-O, C-B and C-Se bonds.…”