期刊
DIAMOND AND RELATED MATERIALS
卷 16, 期 12, 页码 2129-2132出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.diamond.2007.07.018
关键词
chemical grafted compounds; surface chemistry; nanodiamond; nanodiamond surface; Fourier transform IR spectroscopy; suspension-state NMRspectroscopy
High temperature hydrogen stream treatment of nanodiamond was shown to produce nanodiamond with bifunctional surface. OH- and different CH-groups were shown to be the main functional groups on the surface. In this article we proposed two main strategies for further chemical modification of hydrogenated nanodiamond. OH-groups were shown to react with different types of acylating agents: anhydrides and chloranhydrides. Chlorination of hydrogenated nanodiamond with molecular chlorine and its subsequent treatment with alkyllithium reagents resulted in formation of alkyl-nanodiamonds. Chlorination was shown to reduce the size of nanodiamonds aggregates. We have also applied suspension-state NMR-H1 spectroscopy to study suspensions of alkyl-nanodiamonds for the first time. (c) 2007 Elsevier B.V. All rights reserved.
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