Predominant (6,5) Single-Walled Carbon Nanotube Growth on a Copper-Promoted Iron Catalyst

被引：162

作者：

He, Maoshuai ^{[1
]}

Chernov, Alexander I. ^{[2
]}

Fedotov, Pavel V. ^{[2
]}

Obraztsova, Elena D. ^{[2
]}

Sainio, Jani ^{[3
]}

Rikkinen, Emma ^{[1
]}

Jiang, Hua ^{[4
]}

Zhu, Zhen ^{[4
]}

Tian, Ying ^{[4
]}

Kauppinen, Esko I. ^{[4
,5
]}

Niemelae, Marita ^{[1
]}

Krauset, A. Outi I. ^{[1
]}

机构：

[1] Aalto Univ, Dept Biotechnol & Chem Technol, Sch Sci & Technol, FI-00076 Aalto, Finland

[2] Russian Acad Sci, AM Prokhorov Gen Phys Inst, Moscow 119991, Russia

[3] Aalto Univ, Sch Sci & Technol, Dept Appl Phys, FI-00076 Aalto, Finland

[4] Aalto Univ, Sch Sci & Technol, Dept Appl Phys, NanoMaterials Grp, FI-00076 Aalto, Finland

[5] VTT Biotechnol, FI-02044 Espoo, Finland

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2010年 / 132卷 / 40期

基金：

芬兰科学院;

关键词：

SEPARATION;

D O I：

10.1021/ja106609y

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We have developed a magnesia (MgO)-supported iron-copper (FeCu) catalyst to accomplish the growth of single-walled carbon nanotubes (SWNTs) using carbon monoxide (CO) as the carbon source at ambient pressure. The FeCu catalyst system facilitates the growth of small-diameter SWNTs with a narrow diameter distribution. UV-vis-NIR optical absorption spectra and photoluminescence excitation (PLE) mapping were used to evaluate the relative quantities of the different (n,m) species. We have also demonstrated that the addition of Cu to the Fe catalyst can also cause a remarkable increase in the yield of SWNTs. Finally, a growth mechanism for the FeCu-catalyzed synthesis of SWNTs has been proposed.

引用

页码：13994 / 13996

页数：3

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