The role of the sp2:sp3 substrate content in carbon supported nanotube growth

被引：18

作者：

Cartwright, Richard J. ^{[1
]}

Esconjauregui, Santiago ^{[1
]}

Weatherup, Robert S. ^{[1
]}

Hardeman, David ^{[1
]}

Guo, Yuzheng ^{[1
]}

Wright, Eleanor ^{[2
]}

Oakes, Daniel ^{[2
]}

Hofmann, Stephan ^{[1
]}

Robertson, John ^{[1
]}

机构：

[1] Univ Cambridge, Dept Elect Engn, Cambridge CB3 0FA, England

[2] Johnson Matthey Technol Ctr, Reading RG4 9NH, Berks, England

来源：

CARBON | 2014年 / 75卷

关键词：

CHEMICAL-VAPOR-DEPOSITION; AMORPHOUS-CARBON; COMPOSITES; GRAPHITE; FORESTS; DIAMOND;

D O I：

10.1016/j.carbon.2014.04.011

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 report the growth of vertically-aligned nanotube forests, of up to 0.2 mm in height, on an 85:15 sp(2):sp(3) carbon support with Fe catalyst. This is achieved by purely-thermal chemical vapour deposition with the catalyst pretreated in inert environments. Pretreating the catalyst in a reducing atmosphere causes catalyst diffusion into the support and the growth of defective tubes. Other sp(2):sp(3) compositions, including graphite, tetrahedral amorphous carbon, and pure diamond, also lead to the growth of defective carbon morphologiet. These results pave the way towards controlled growth of forests on carbon fibres. It could give rise to applications in enhanced fuel cell electrodes and better hierarchical carbon fibre-nanotube composites. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：327 / 334

页数：8

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