Characterization of single-walled carbon nanotubes (SWNTs) produced by CO disproportionation on Co-Mo catalysts

被引：166

作者：

Alvarez, WE ^{[1
]}

Pompeo, F ^{[1
]}

Herrera, JE ^{[1
]}

Balzano, L ^{[1
]}

Resasco, DE ^{[1
]}

机构：

[1] Univ Oklahoma, Sch Chem Engn & Mat Sci, Norman, OK 73019 USA

来源：

CHEMISTRY OF MATERIALS | 2002年 / 14卷 / 04期

关键词：

D O I：

10.1021/cm011613t

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：

The disproportionation of CO over Co-Mo/SiO2 catalysts with low Co/Mo ratios results in a high selectivity to single-walled carbon nanotubes (SWNTs) when the reaction is conducted between 700 and 950 degreesC in a flow of pure CO at a total pressure between 1 and 5 atm. A detailed characterization involving Raman spectroscopy, temperature-programmed oxidation (TPO), and transmission electron microscopy (TEM) shows that the product of this process has a high concentration of SWNTs. Depending on the temperature of operation, the selectivity and nanotube diameter can be varied.

引用

页码：1853 / 1858

页数：6

共 25 条

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