Synthesis of Nanoparticles by Microwave Plasma Torch

Summary form only given. Nanocrystalline nanoparticles are directly synthesized in an atmospheric microwave plasma-torch, using gas-phase precursors. Titanium tetrachloride and vanadium chloride were used as gas-phase precursors. The synthesized powder samples were analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray diffractometer (XRD). The microwave plasma-torch has several advantages: (1) the production can be carried out in gas-phase at atmospheric pressure, for which an expensive vacuum system is not necessary, in contrast to other methods in gas-phase; (2) the production can be carried out in the continuous process, which makes mass production possible; (3) the production system is compact, allowing ready operation for various applications