Thermally oxidized aluminum as catalyst-support layer for vertically aligned single-walled carbon nanotube growth using ethanol

被引：27

作者：

Azam, Mohd Asyadi ^{[1
]}

Fujiwara, Akihiko ^{[2
]}

Shimoda, Tatsuya ^{[1
]}

机构：

[1] JAIST, Sch Mat Sci, Nomi, Ishikawa 9231292, Japan

[2] Japan Synchrotron Radiat Res Inst JASRI, Res & Utilizat Div, Sayo, Hyogo 6795198, Japan

来源：

APPLIED SURFACE SCIENCE | 2011年 / 258卷 / 02期

基金：

日本学术振兴会;

关键词：

Vertically aligned single-walled CNT; Aluminum oxide support layer; Co catalyst; Ethanol CVD; Al-O surface roughness; Al-O surface chemical state; VAPOR-DEPOSITION GROWTH; METAL-CATALYSTS; FILMS; COBALT; SPECTROSCOPY; THICKNESS; FORESTS; STATE; ESCA;

D O I：

10.1016/j.apsusc.2011.09.018

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：

Characteristics and role of Al oxide (Al-O) films used as catalyst-support layer for vertical growth of single-walled carbon nanotubes (SWCNTs) were studied. EB-deposited Al films (20 nm) were thermally oxidized at 400 degrees C (10 min, static air) to produce the most appropriate surface structure of Al-O. Al-O catalyst-support layers were characterized using various analytical measurements, i.e., atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), and spectroscopy ellipsometry (SE). The thermally oxidized Al-O has a highly roughened surface, and also has the most suitable surface chemical states compared to other type of Al-O support layers. We suggest that the surface of thermally oxidized Al-O characterized in this work enhanced Co catalyst activity to promote the vertically aligned SWCNT growth. (C) 2011 Elsevier B. V. All rights reserved.

引用

页码：873 / 882

页数：10

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