Effects of substitutional B on oxidation of carbon nanotubes in air and oxygen plasma

被引：18

作者：

Lee, YJ ^{[1
]}

Kim, HH ^{[1
]}

Hatori, H ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol AIST, Tsukuba, Ibaraki 3058569, Japan

来源：

CARBON | 2004年 / 42卷 / 5-6期

关键词：

carbon nanotubes; doping; oxidation; plasma reactions; thermal analysis;

D O I：

10.1016/j.carbon.2003.12.002

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：

Multi-walled carbon nanotubes (CNTs) were doped with B at the initial loading of 1 and 2.5 wt.% and their oxidation behaviors in both air and oxygen plasma were studied to assess the effects of substitutional B in carbon oxidation and examine the hypothesis that the preferential attack by atomic oxygen on basal plane is due to delocalized pi-electrons. The effect of substitutional B on oxidation of carbon nanotubes in both environments was found to be inhibiting; oxidation inhibition increased as B loading increased, but the structural changes after oxidation were quite different and this difference seems to be due to different oxidation mode. The results observed here support the hypothesis that the preferential attack by atomic oxygen on basal plane is due to delocalized pi-electrons. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：1053 / 1056

页数：4

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