METHOD FOR OZONATION OF CARBONACEOUS NANOMATERIALS Russian patent published in 2015 - IPC C01B31/02 B82B3/00 B82Y40/00 

Abstract RU 2569096 C2

FIELD: chemistry.

SUBSTANCE: invention can be used to obtain functionalised carbonaceous nanomaterials. Carbon nanotubes are ozonised in a flow vessel in the presence of sulphur trioxide or nitric acid, which accelerate ozone action on their surface. Sulphur trioxide or nitric acid is fed into a vessel with nanotubes before feeding ozonised air. In an alternative version, ozonised air is fed through a flow vessel with addition of sulphur trioxide or nitric acid vapour at a rate of 1 m3/h for 1-8 hours.

EFFECT: high concentration of surface oxygen-containing groups.

5 dwg, 3 ex

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RU 2 569 096 C2

Authors

D'Jachkova Tat'Jana Petrovna

Melezhik Aleksandr Vasil'Evich

Gorskij Sergej Jur'Evich

Tkachev Aleksej Grigor'Evich

Dates

2015-11-20Published

2013-09-16Filed