Atomic-Scale Analysis on the Role of Molybdenum in Iron-Catalyzed Carbon Nanotube Growth

被引：76

作者：

Yoshida, Hideto ^{[1
]}

Shimizu, Takuma ^{[1
]}

Uchiyama, Tetsuya ^{[1
]}

Kohno, Hideo ^{[1
]}

Homma, Yoshikazu ^{[2
]}

Takeda, Seiji ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Sci, Osaka 5600043, Japan

[2] Tokyo Univ Sci, Dept Phys, Shinjuku Ku, Tokyo 1628601, Japan

来源：

NANO LETTERS | 2009年 / 9卷 / 11期

关键词：

GAS-PHASE SYNTHESIS; SELECTIVE GROWTH; SINGLE; CVD; MO; CO; MECHANISM; DYNAMICS; STATE; WATER;

D O I：

10.1021/nl9019903

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We have elucidated the synergetic role played by molybdenum in iron-catalyzed chemical vapor deposition growth of carbon nanotubes (CNTs) by in situ environmental transmission electron microscopy. Molybdenum can be well accommodated by Fe-based carbide nanoparticle catalysts of M23C6-type structure (M = Fe and Mo). We have also shown that molybdenum suppresses the nucleation of iron compounds that are known to exhibit no catalytic activity for the growth of CNTs.

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页码：3810 / 3815

页数：6

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