Reversible Diameter Modulation of Single-Walled Carbon Nanotubes by Acetonitrile-Containing Feedstock

被引：31

作者：

Thurakitseree, Theerapol ^{[1
]}

Kramberger, Christian ^{[4
]}

Kumamoto, Akihito ^{[2
]}

Chiashi, Shohei ^{[1
]}

Einarsson, Erik ^{[1
,3
]}

Maruyama, Shigeo ^{[1
]}

机构：

[1] Univ Tokyo, Dept Mech Engn, Bunkyo Ku, Tokyo 1138656, Japan

[2] Univ Tokyo, Inst Engn Innovat, Sch Engn, Bunkyo Ku, Tokyo 1138656, Japan

[3] Univ Tokyo, Global Ctr Excellence Mech Syst Innovat, Bunkyo Ku, Tokyo 1138656, Japan

[4] Univ Vienna, Fac Phys, A-1090 Vienna, Austria

来源：

ACS NANO | 2013年 / 7卷 / 03期

关键词：

vertically aligned; single-walled carbon nanotube; SWNT; doped SWNT; diameter control; acetonitrile; CHEMICAL-VAPOR-DEPOSITION; ROOT-GROWTH; CATALYST; CO; SPECTROSCOPY; TEMPERATURE; SELECTIVITY; PRECURSORS; MECHANISM; CHIRALITY;

D O I：

10.1021/nn3051852

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Changing the carbon feedstock from pure ethanol to a 5 vol % mixture of acetonitrile in ethanol during the growth of vertically aligned single-walled carbon nanotubes (SWNTs) reduces the mean diameter of the emerging SWNTs from approximately 2 to 1 nm. We show this feedstock-dependent change is reversible and repeatable, as demonstrated by multilayered vertically aligned SWNT structures. The reversibility of this process and lack of necessity for catalyst modification provides insight into the role of nitrogen In reducing the SWNT diameter.

引用

页码：2205 / 2211

页数：7

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