Transmission electron microscopy study of multi-walled carbon nanotubes of different morphology oxidized with nitric acid

被引：1

作者：

Savilov, S. V. ^{[1
]}

Egorov, A. V. ^{[1
]}

Kirikova, M. N. ^{[1
]}

Chernyak, S. A. ^{[1
]}

Ivanov, A. S. ^{[1
]}

Xia, H. ^{[2
]}

Aldoshin, S. M. ^{[1
,3
]}

Lunin, V. V. ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Dept Chem, 1-3 Leninskie Gory, Moscow 119991, Russia

[2] Nanjing Univ Sci & Technol, Herbert Gleiter Inst Nanosci, Nanjing 210094, Jiangsu, Peoples R China

[3] Moscow MV Lomonosov State Univ, Fac Fundamental Phys & Chem Engn, Moscow 119991, Russia

来源：

RUSSIAN CHEMICAL BULLETIN | 2015年 / 64卷 / 09期

基金：

俄罗斯科学基金会;

关键词：

carbon nanotubes; oxidation; transmission electron microscopy; XPS; thermal analysis;

D O I：

10.1007/s11172-015-1117-x

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Oxidation of conical and cylindrical carbon nanotubes (CNTs) was studied by physico-chemical methods including high-resolution transmission electron microscopy. Differences in mechanisms of oxidation of these CNTs were revealed. The oxidation of conical CNTs with nitric acid first results in the formation of oxygen-containing groups uniformly distributed over the CNT surface, and then the carbon material undergoes fragmentation and destruction. The treatment of cylindrical CNTs with nitric acid results in oxidation at defect sites followed by a decrease in the tube thickness and a change in the pore structure of the carbon material.

引用

页码：2055 / 2061

页数：7

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