Swift modification of resistively heated carbon nanotube films by the action of hydrogen peroxide

被引：7

作者：

Janas, Dawid ^{[1
]}

Herman, Artur P. ^{[1
,2
]}

Boncel, Slawbmir ^{[1
,2
]}

Koziol, Krzysztof K. K. ^{[1
]}

机构：

[1] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB3 0FS, England

[2] Silesian Tech Univ, Dept Organ Chem Bioorgan Chem & Biotechnol, PL-44100 Gliwice, Poland

来源：

MATERIALS LETTERS | 2014年 / 119卷

基金：

欧洲研究理事会;

关键词：

Carbon nanotubes; Electrical properties; Surface modification; Raman; Thin films; CHEMICAL OXIDATION; MECHANISM;

D O I：

10.1016/j.matlet.2014.01.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have developed a benign technique for the modification of electrical and structural properties of horizontally aligned carbon nanotube (CNT) films. The as-made CNT films were immersed in 30 %wt aqueous solution of hydrogen peroxide whilst current was passed through the nanotube bundles to bring the temperature of CNTs up to 200 degrees C. Depending on the employed conditions, we either successfully removed extraneous material contaminating CNT films and decreased its resistance by 40% or initiated the introduction of functional groups. The whole process lasted only for 1 min and was more straightforward, less expensive and more ecologically friendly than the current post-processing technologies. We imagine that such a method of tweaking up electrical and/or structural properties could be successfully employed to a range of nanomaterials with a particular focus on carbon C-sp(2) nanostructures. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：115 / 118

页数：4

共 30 条

[21] Thermal conductance of an individual single-wall carbon nanotube above room temperature [J].