Direct Synthesis of Copper and Copper Oxide Nanoparticles from Bulk Materials by the Induction Flow Levitation Technique

— Cu, Cu@Cu 2 O, and CuO nanoparticles have been prepared by the induction flow levitation method using bulk copper. The method offers a number of advantages, such as a high production rate, continuity of the nanoparticle synthesis process, the ability to vary the nanoparticle size in a wide range, and contactless heating, which ensures high purity of the synthesis product. To obtain nanoparticles with a core–shell structure and copper oxide nanoparticles, oxygen was introduced into different zones of the quartz reactor used. The synthesized nanoparticles have been characterized by a number of physicochemical methods.