Al2O3 + FeCo and Al2O3 + FeNi coatings for multiwalled carbon nanotubes growth

被引：6

作者：

Enrique Samaniego, J. ^{[1
]}

Francisco Perez, J. ^{[1
]}

Solorza, O. ^{[2
]}

Garcia, A. ^{[3
]}

机构：

[1] Ctr Invest & Estudios Avanzados IPN Unidad Queret, Ciudad Mexico, DF, Mexico

[2] Ctr Invest Estudios Avanzados IPN, Mexico City, DF, Mexico

[3] Ctr Invest Mat Avanzados Unidad Monterrey, Apodaca, Nuevo Leon, Mexico

来源：

关键词：

Carbon nanotubes; Alumina coating; Chemical vapor deposition; Raman spectroscopy; WALLED CARBON NANOTUBES; CHEMICAL-VAPOR-DEPOSITION; CATALYTIC GROWTH; NI; DECOMPOSITION; FILAMENTS; METHANE;

D O I：

10.1016/j.diamond.2015.01.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work the preparation of growth of aligned multiwall carbon nanotubes (MWCNTs) is presented using FeCo and FeNi alumina-based catalysts. The catalysts were prepared using the sol-gel process and some stainless steel substrates were coated using the dip coating technique. These coatings were used for the MWCNT in a Chemical Vapor Deposition (CVD) reactor. X-ray diffraction (XRD) studies of the coating solutions demonstrate the formation of metallic phases rich in iron in both samples. Raman spectroscopy study depicted the characteristic bands of MWCNT and the scanning electron microscopy (SEM) analysis showing the growth of aligned MWCNTs with a length of about 10 pm and 20 to 80 nm of diameter on both coatings. These results contribute to establishing a new route for the preparation of aligned and high purity MWCNT using catalysts prepared by a very fast and simple way. (c) 2015 Elsevier B.V. All rights reserved.

引用

页码：18 / 22

页数：5

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