Single-wall carbon nanotube synthesis by CO disproportionation on nickel-incorporated MCM-41

被引：32

作者：

Chen, Y ^{[1
]}

Ciuparu, D ^{[1
]}

Yang, YH ^{[1
]}

Lim, S ^{[1
]}

Wang, C ^{[1
]}

Haller, GL ^{[1
]}

Pfefferle, LD ^{[1
]}

机构：

[1] Yale Univ, Dept Chem Engn, New Haven, CT 06520 USA

来源：

NANOTECHNOLOGY | 2005年 / 16卷 / 07期

关键词：

D O I：

10.1088/0957-4484/16/7/023

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Both Ni- and Co-MCM-41 may be used for the synthesis of single-wall carbon nanotubes (SWNT). We present a comparative investigation that demonstrates that smaller diameter SWNT with a narrower distribution of diameters are produced using Co-MCM-41. Temperature-programmed reduction and x-ray absorption spectroscopy were used to measure the reducibility and metal cluster growth of Ni- and Co-MCM-41 in He, H-2 and under CO disproportionation reaction. The differences between these two catalysts can be attributed to a greater reducibility of and a greater CO affinity for Ni relative to Co.

引用

页码：S476 / S483

页数：8

共 24 条

[21] Dependence of optical transition energies on structure for single-walled carbon nanotubes in aqueous suspension: An empirical Kataura plot [J].