TY - JOUR
T1 - First results of the surface modification of multiwall carbon nanotubes by a hollow cathode discharge
AU - Rigaux, C
AU - Tichelaar, FD
AU - Louette, P
AU - Colaux, JL
AU - Lucas, S
PY - 2011
Y1 - 2011
N2 - Since the discovery of carbon nanotubes (CNTs), there has been great interest in finding ways to functionalize them effectively. Cold plasma treatment of a material can graft - in a short time and with high yield - a wide range of chemical functions to the CNT surface, greatly modifying its reactivity. In this work, we present the results of the first trials performed with a special plasma reactor that can be used to functionalize larger amounts of CNTs. The reactor is a homemade, rotating, cylindrical, hollow cathode involving a fixed magnetron setup. The magnetron configuration ensures a very high plasma density. Two different gas discharges were used: nitrogen and allylamin. The plasma treatment effects were investigated by Scanning and (High Resolution) Transmission Electron Microscopy. The treated surfaces were also analysed by x-ray photoelectron spectroscopy and nuclear reaction analysis to evaluate the influence of the plasma treatment time and quantity of CNTs loaded in the hollow cathode on the nitrogen concentration. Nitrogen incorporation of up to 12% and CNTs wrapping of 20 nm thick Plasma Polymer Allylamin was achieved in 90 s.
AB - Since the discovery of carbon nanotubes (CNTs), there has been great interest in finding ways to functionalize them effectively. Cold plasma treatment of a material can graft - in a short time and with high yield - a wide range of chemical functions to the CNT surface, greatly modifying its reactivity. In this work, we present the results of the first trials performed with a special plasma reactor that can be used to functionalize larger amounts of CNTs. The reactor is a homemade, rotating, cylindrical, hollow cathode involving a fixed magnetron setup. The magnetron configuration ensures a very high plasma density. Two different gas discharges were used: nitrogen and allylamin. The plasma treatment effects were investigated by Scanning and (High Resolution) Transmission Electron Microscopy. The treated surfaces were also analysed by x-ray photoelectron spectroscopy and nuclear reaction analysis to evaluate the influence of the plasma treatment time and quantity of CNTs loaded in the hollow cathode on the nitrogen concentration. Nitrogen incorporation of up to 12% and CNTs wrapping of 20 nm thick Plasma Polymer Allylamin was achieved in 90 s.
KW - CWTS 0.75 <= JFIS < 2.00
U2 - 10.1016/j.surfcoat.2010.12.025
DO - 10.1016/j.surfcoat.2010.12.025
M3 - Article
SN - 0257-8972
VL - 205
SP - S601-S604
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
ER -