New strategy for synthesis and functionalization of carbon nanoparticles.
We describe a novel "one-step" combined synthesis and functionalization of carbon nanoparticles, using a new generation of all-in-one small submerged-arc plasma reactor that we have developed. We take advantage of long-lived free radicals generated by a submerged-arc helium atmosphere plasma and resident on the nanoparticle surfaces to supply ethylenediamine directly after the plasma to functionalize the carbon nanoparticles. XPS, TG/DTG, FTIR, and fluorescence tests confirm the viability of this new amination process. The nanoparticles are small and relatively uniformly sized. Their dispersibility in aqueous solution is significant.
Jiang
Hongquan
H
Department of Material Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA.
Chen
Feng
F
Lagally
Max G
MG
Denes
Ferencz S
FS
D000586:Amination; D001554:Benzene / Q000737:chemistry; D002244:Carbon / Q000737:chemistry*; D005029:Ethylenediamines / Q000737:chemistry; D005609:Free Radicals / Q000737:chemistry; D006371:Helium / Q000737:chemistry; D008853:Microscopy; D053758:Nanoparticles / Q000737:chemistry*; D010316:Particle Size; D017550:Spectroscopy, Fourier Transform Infrared; D013818:Thermogravimetry
D005029:Ethylenediamines; D005609:Free Radicals; D006371:Helium; C031234:ethylenediamine; D002244:Carbon; D001554:Benzene