Physical and chemical properties of modified nanodiamonds

被引：0
|
作者：
Puzyr, AP [1 ]
Bondar, VS [1 ]
Bukayemsky, AA [1 ]
Selyutin, GE [1 ]
Kargin, VF [1 ]
机构：
[1] RAS, Inst Biophys SB, Krasnoyarsk 660036, Russia
来源：
SYNTHESIS, PROPERTIES AND APPLICATIONS OF ULTRANANOCRYSTALLINE DIAMOND | 2005年 / 192卷
关键词：
nanodiamond; modified nanodiamonds; hydrosols; colloidal stability; electrophoresis; powder fractioning; precursors for CVD; electron field emission;
D O I：
暂无
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A unique technology of nanodiamond surface modification is suggested which allows to separation of commercial nanodiamond powders into two fractions (F1 and 172), each possessing absolutely new properties as compared to the initial powder. F1 and F2 differ in size characteristics. Initial and modified nanodiamonds contain iron impurities and two types of nondiamond carbon. The color of the powders and hydrosols does not correlate with the content of non-diamond carbon. According to the EPR data, modified nanodiamonds possess a high level of diamond matrix shielding, and the extracted fractions differ in width of the basic transition area and in the SHF energy adsorption ratio. Due to this, F1 can be applied as precursors for CVD growth of nanocrystalline diamond and as field electron emission tips.
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页码：261 / 270
页数：10
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