Large-scale production of single-walled carbon nanotubes using ultrafast pulses from a free electron laser

被引：67

作者：

Eklund, PC

Pradhan, BK

Kim, UJ

Xiong, Q

Fischer, JE

Friedman, AD

Holloway, BC

Jordan, K

Smith, MW

机构：

[1] Penn State Univ, Dept Phys, University Pk, PA 16802 USA

[2] Univ Penn, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA

[3] Univ Penn, LRSM, Philadelphia, PA 19104 USA

[4] Coll William & Mary, Dept Appl Sci, Williamsburg, VA 23187 USA

[5] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA

[6] NASA, Langley Res Ctr, Hampton, VA 23681 USA

来源：

NANO LETTERS | 2002年 / 2卷 / 06期

关键词：

D O I：

10.1021/nl025515y

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report the first use of ultrafast (subpicosecond) laser pulses for large-scale production of single wall carbon nanotubes (SWNT's) by the pulsed laser vaporization (PLV) technique. Very high production rates were achieved; using only 20% of the nominal average power of the 1 kW Jefferson Lab free electron laser (Jlab FEL), carbon soots rich in high quality bundles of SWNT's were produced at similar to1.5 g/h. Accordingly, a novel PLV geometry employing a spinning target and a sonic shearing jet of 1000 degreesC argon was developed to accommodate the highly energetic Jlab FEL ablation plume. Samples were characterized by scanning electron microscope, atomic force microscopy, transmission electron microscopy, temperature programmed oxidation, and Raman spectroscopy.

引用

页码：561 / 566

页数：6