Uniform diameter multi-walled carbon nanotubes with a controlled wall number obtained by a simple chemical vapor deposition method

被引：13

作者：

Lin, Youqin ^{[1
]}

Dichiara, Anthony ^{[1
]}

He, Delong ^{[1
]}

Haghi-Ashtiani, Paul ^{[1
]}

Bai, Jinbo ^{[1
]}

机构：

[1] Ecole Cent Paris, CNRS UMR8579, Lab Mecan Sols Struct & Mat, F-92290 Chatenay Malabry, France

来源：

CHEMICAL PHYSICS LETTERS | 2012年 / 554卷

关键词：

GROWTH-MECHANISM; TEMPERATURE; HYDROGEN; ARRAYS;

D O I：

10.1016/j.cplett.2012.10.028

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：

A simple method was proposed to prepare carbon nanotubes (CNTs) with uniform diameter and controlled wall number. Concentric graphene layers were homogeneously deposited on CNTs by aerosol-assisted chemical vapor deposition. The formation of new concentric graphitic layers on the pristine CNTs was linearly proportional with the deposition time, resulting from a competition between the dehydrogenation of hydrocarbons and the hydrogenation of the deposited carbon atoms on the CNT surface. This process homogeneously thickens the CNT diameter by increasing their wall number, allowing an accurate control of the CNT morphology, which is of great interest in a wide range of applications. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：137 / 142

页数：6

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