Oxygen Functionalization of Multiwall Carbon Nanotubes by Microwave-Excited Surface-Wave Plasma Treatment

被引：253

作者：

Chen, Changlun ^{[2
]}

Liang, Bo ^{[1
,2
]}

Ogino, Akihisa ^{[2
]}

Wang, Xiangke ^{[1
]}

Nagatsu, Masaaki ^{[2
]}

机构：

[1] Chinese Acad Sci, Inst Plasma Phys, Key Lab Novel Thin Film Solar Cells, Hefei 230031, Peoples R China

[2] Shizuoka Univ, Grad Sch Sci & Technol, Johoka Ku, Hamamatsu, Shizuoka 4328561, Japan

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2009年 / 113卷 / 18期

基金：

中国国家自然科学基金;

关键词：

OZONE OXIDATION; DISCHARGE; POLYMERS; FILMS;

D O I：

10.1021/jp9012015

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：

In this work, oxygen-containing groups were introduced onto multiwall carbon nanotubes (MWCNTs) by using microwave-excited Ar/O-2 surface-wave plasma (SWP) treatment. The changes of the atomic contents and structure properties of MWCNTs as a function of gas flow rate, treatment time, and plasma power were analyzed using X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. A mechanism of MWCNT oxidation was proposed, based on XPS analysis, which showed how oxygen-containing groups, such as C-O, C=O, and O-C=O, were generated on the surfaces of MWCNTs. The surface morphology of MWCNTs was observed by field emission scanning electron microscopy (FE-SEM). The results indicated that Ar/O-2 plasma treatment greatly enhanced the content of oxygen, modified structure properties, induced more surface defects, and improved the dispersion of MWCNTs in aqueous solution. The integrity of the nanotube patterns was not damaged.

引用

页码：7659 / 7665

页数：7

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