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I. I. Kulakova, A. Yu. Pereyaslavcev, G. V. Lisichkin
Regularities of the detonation nanodiamond
surface chlorination
Abstract
The authors critically analyzed the
literature and their own data on the methods of chlorination of diamond
micropowders surface. Features of different methods of detonation nanodiamond
(DND) chlorination are compared, optimal conditions of the process are
revealed. It is shown that the method of gas-phase chlorination of DND with
molecular chlorine at elevated temperatures is preferable for the use of DND in
biomedical applications; this method also helps to reduce the concentration of
metal impurities. It was found that the use of thionyl chloride and sulfuryl
chloride leads to contamination of samples of DND-Cl with sulfur. It is shown
that the samples of DND-Cl have the satisfactory hydrolytic stability.
Key words: detonation nanodiamond, surface
chlorination, molecular chlorine, sulfuryl chloride, thionyl chloride.
Copyright (C) Chemistry Dept., Moscow State University, 2002
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