Patent ID: 8992849
Filing Date: 2015-03-31
Classification: B01J,C01B

Abstract:
1. An apparatus for preparing silicon nanoparticles, comprising: a first gas injection path configured to inject a first gas for generating silicon nanoparticles; a second gas injection path configured to inject a second gas for doping the silicon nanoparticles; a plasma reaction section connected with the first and second gas injection paths, and configured to generate and dope the silicon nanoparticles by using the injected gases; an inductively coupled plasma (ICP) coil winding around the plasma reaction section; a corona discharge section configured to charge the doped silicon nanoparticles to have a single polarity in order to prevent agglomeration of the silicon nanoparticles; a cooling section disposed under the corona discharge section and configured to cool the silicon nanoparticles discharged from the corona discharge section; a collecting section configured to filter and collect the cooled silicon nanoparticles, and removably coupled to a lower side of the cooling section by a coupling member, wherein the collecting section comprises a mesh filter removably coupled to an inner path of the collecting section, and configured to a valve disposed at an inlet of the mesh filter, and configured to block a flow of fluid passing through the inner path of the collecting section.