Low temperature growth of carbon nanotubes on tetrahedral amorphous carbon using Fe-Cu catalyst

被引：32

作者：

Cartwright, R. ^{[1
]}

Esconjauregui, S. ^{[1
]}

Hardeman, D. ^{[1
]}

Bhardwaj, S. ^{[2
]}

Weatherup, R. ^{[1
]}

Guo, Y. ^{[1
]}

D'Arsie, L. ^{[1
]}

Bayer, B. ^{[1
]}

Kidambi, P. ^{[1
]}

Hofmann, S. ^{[1
]}

Wright, E. ^{[3
]}

Clarke, J. ^{[3
]}

Oakes, D. ^{[3
]}

Cepek, C. ^{[2
]}

Robertson, J. ^{[1
]}

机构：

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

[2] Lab TASC, Ist Officina Mat, CNR, I-34149 Trieste, Italy

[3] Johnson Matthey Technol Ctr, Sonning Common RG4 9NH, Oxon, England

来源：

CARBON | 2015年 / 81卷

基金：

英国工程与自然科学研究理事会;

关键词：

IN-SITU; COPPER; IRON; INTERFACE; SOLUBILITY; REACTIVITY; SUBSTRATE; GRAPHENE; SPECTRA; FILMS;

D O I：

10.1016/j.carbon.2014.10.001

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 carbon nanotubes on tetrahedral-amorphous carbon using a Fe-Cu catalyst system at temperatures <500 degrees C. By X-ray photoemission spectroscopy, we show that Cu forms an alloy with Fe during the process of catalyst pretreatment. This not only dramatically enhances the catalytic activity of Fe towards the nucleation of nanotubes at low temperatures, but simultaneously reduces its propensity to diffuse into the bulk of carbon-based substrates, thus minimising support damage. Such results prove the feasibility of growing nanotubes directly on carbon fibres, highlighting their potential for use in composites and fuel cell electrodes. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：639 / 649

页数：11

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