METHOD OF SYNTHESIS OF METAL NANOPARTICLES BY DEPOSITION ON A POROUS CARBON MATERIAL Russian patent published in 2019 - IPC B22F9/12 C23C14/30 B82Y40/00 

FIELD: nanotechnologies.

SUBSTANCE: invention relates to the production of metal nanoparticles. Method comprises the evaporation of a metal target by an electron beam in a vacuum and the deposition of metal nanoparticles. Evaporation of a metal target is conducted by an electron beam directed at an angle of 30–90 degrees to the target surface. Provide spatial scanning of the electron beam in two coordinates on the target with frequencies within 5–200 Hz and amplitude of 5 mm for 10–1000 seconds and temporal modulation of the beam current with a frequency of 10–100 Hz with a duty cycle of 1–10. Deposition of metal nanoparticles is carried out from a directional flow on a substrate covered with a porous carbon material with a thickness of 0.1–2 mm, bulk density 0.04–0.06 g/cm and installed on a water-cooled copper screen.

EFFECT: reduced energy absorption in metal vapors, which increases spraying performance is ensured.

1 cl, 3 dwg