The surface properties of nanodiamonds as examined by gas chromatography

被引：7

作者：

Belyakova, L. D. ^{[1
]}

Kudinova, A. N. ^{[1
]}

Larionova, A. O. ^{[1
]}

Larionov, O. G. ^{[1
]}

Spitsyn, B. V. ^{[1
]}

机构：

[1] Russian Acad Sci, Frumkin Inst Phys Chem & Electrochem, Moscow 119991, Russia

来源：

RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2008年 / 82卷 / 03期

关键词：

Retention Volume; Graphitized Carbon Black; Reactive Functional Group; Gaseous Ozone; Detonation Nanodiamond;

D O I：

10.1134/S0036024408030175

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：

Two samples of detonation nanodiamond (ND) were studied using gas chromatography. Sample ND-Cr was treated by boiling sulfochromic acid with liquid-phase acid purification. Sample ND-Oz was treated with gaseous ozone. The retention times determined for nine substances of different nature at various temperatures were used to calculate the specific retention volumes and the thermodynamic parameters of adsorption of test compounds on ND-Oz and ND-Cr. The adsorption heats of tested n-hydrocarbons on nanodiamond powders, especially on ND-Oz, are close to those on graphitized carbon black (GTB). For benzene and polar compounds, the specific interaction terms in the total energy of adsorption were determined. These terms are higher for ND-Oz than for ND-Cr; i.e., sample ND-Oz contains more reactive functional groups.

引用

页码：420 / 423

页数：4

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