METHOD OF FUNCTIONALIZING CARBON NANOTUBES WITH OXYGEN-CONTAINING GROUPS Russian patent published in 2017 - IPC C01B32/174 B82B3/00 B82Y40/00 

FIELD: chemistry.

SUBSTANCE: carbon nanotubes are treated with electrolyte in a flow cell containing a cathode 10 installed in its interior, an anode 6, and a porous diaphragm 8 dividing the inner space into the anode and cathode parts. The electrolyte includes an aqueous acid solution selected from the range: hydrochloric, and/or nitrogen, and/or sulfuric. Carbon nanotubes 7 are placed in the anode part, when they are in direct contact with the anode. A potential difference of 1.5-6 V is established between the anode 6 and the cathode 10, sufficient for the electrolysis to proceed. The electrolyte is passed at a rate of 1-5 ml/min for 1 g nanotubes for 3-10 hours. The carbon nanotubes are then removed from the cell, washed with water and dried.

EFFECT: invention allows to functionalize carbon nanotubes with oxygen-containing functional groups in a simple way.

6 cl, 2 dwg, 3 ex