Nanodiamond and a method for the production thereof

Details Nanodiamond and a method for the production thereof Nanodiamond and a method for the production thereof

2011-01-11

2011-01-11

Mayes, Melvin C (Department: 1793)

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

C264S084000

Reexamination Certificate

active

07867467

ABSTRACT:
The invention relates to carbon chemistry and is embodied in the form of a nanodiamond comprising 90.0-98.0 mass % carbon, 0.1-5.0 mass % hydrogen, 1.5-3.0 mass % nitrogen and 0.1-4.5 mass % oxygen, wherein the carbon is contained in the form a diamond cubic modification and in a roentgen-amorphous phase at a ratio of (82-95):(18-5) in terms of a carbon mass, respectively. The inventive method for producing said material consisting in detonating in a closed space of a carbon-inert gas medium a carbon-containing oxygen-deficient explosive material which is placed in a condensed phase envelop containing a reducing agent at a quantitative ratio between said reducing agent mass in the condensed envelop and the mass of the used carbon-containing explosive material equal to or greater than 0.01:1 and in chemically purifying by treating detonation products with a 2-40% aqua nitric acid jointly with a compressed air oxygen at a temperature ranging from 200 to 280° C. and a pressure of 5-15 MPa.

REFERENCES:
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patent: 5482695 (1996-01-01), Guschin et al.
patent: 5861349 (1999-01-01), Vereschagin et al.
patent: 5916955 (1999-06-01), Vereschagin et al.
patent: WO03086970 (2003-10-01), None
Derwent Abstract of WO03086970; Derwent Account No. 2003-833687.

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