State of C-atoms on the modified nanodiamond surface

被引：18

作者：

Dementjev, A. ^{[2
]}

Maslakov, K. ^{[2
]}

Kulakova, I. ^{[1
]}

Korolkov, V. ^{[1
]}

Dolmatov, V. ^{[3
]}

机构：

[1] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119992, Russia

[2] RRC Kurchatov Inst, Moscow 123182, Russia

[3] JSC Diamond Ctr, St Petersburg 193076, Russia

来源：

关键词：

nanodiamond; surface chemistry; X-ray photoelectron spectroscopy; Auger spectroscopy; electron energy loss spectroscopy; FTIR spectroscopy;

D O I：

10.1016/j.diamond.2007.07.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

XPS, EEL, Auger and FTIR spectroscopies were used to testify the influence of chemical treatment upon the state of C-atoms in the core and on the surface of nanodiamond particles. The study was carried out with ND (JSC "Diamond Centre"). The different kinds of treatments were done ex-situ: with air (5 h) at 200 and 400 degrees C; with hydrogen (5 h) at 800, 850 and 900 degrees C; with fluorine (48 h) at 20 degrees C and 0.5 atm. Noticeable change was not found in the state of C-atoms both on the surface and up to 10 monolayers after these treatments. The concentration of F in the sample is equal to similar to 9 at.%. The binding energy of the F 1 s differs from the one in functional groups- -CF2, -CF. Nevertheless FTIR spectra show bands that can be related to C-O, C-F bonds. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：2083 / 2086

页数：4

共 9 条

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