Growth of double-wall carbon nanotubes with diameter-controlled iron oxide nanoparticles supported on MgO

被引：80

作者：

Ago, H ^{[1
]}

Nakamura, K

Imamura, S

Tsuji, M

机构：

[1] Kyushu Univ, Inst Mat Chem & Engn, Kasuga, Fukuoka 8168580, Japan

[2] Japan Sci & Technol, CREST, Kasuga, Fukuoka 8168580, Japan

[3] Kyushu Univ, Interdisciplinary Grad Sch Engn Sci, Kasuga, Fukuoka 8168580, Japan

来源：

CHEMICAL PHYSICS LETTERS | 2004年 / 391卷 / 4-6期

关键词：

D O I：

10.1016/j.cplett.2004.04.110

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：

We have studied the growth of carbon nanotubes by chemical vapor deposition (CVD) on the nanoparticles of iron oxide with two different diameters, 4 and 10 nm, supported on MgO powder. Both nanoparticles catalyzed the growth of double-wall carbon nanotubes (DWNTs) together with a small amount of single-wall carbon nanotubes (SVTNTs). We found that the inner- and outer-diameters of the DWNTs were modified by the initial nanoparticle size; smaller nanoparticles catalyzed the growth of the DWNTs with smaller diameters. These results suggest that the MgO support strongly influence the catalytic activity of nanoparticles by reduction of the catalytically-active size. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：308 / 313

页数：6

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