𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Production of carbon nanotubes by single-pulse discharge in air

✍ Scribed by Y.Y. Tsai; J.S. Su; C.Y. Su; W.H. He

Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
913 KB
Volume
209
Category
Article
ISSN
0924-0136

No coin nor oath required. For personal study only.

✦ Synopsis

The production of carbon nanotubes (CNTs) has various methods, such as arc discharge, laser ablation, chemical vapor deposition (CVD), template-directed synthesis. These methods generally require, besides catalyst particles, vacuum environment and special ambient gas to prevent carbon from high temperature oxidation. However in this paper, CNTs were successfully produced on selected locations under atmospheric environment and room temperature by micro electrodischarge method. The micro electrodischarge system was composed with transistor circuit to offer discharging time of microseconds and peak current of several ampere. The effect of peak current and discharging time on the production of CNTs was addressed. Experimental results show that the structure and quantity of CNTs is different with different processing parameters. Multi-wall CNTs with the outer diameter of 17 nm and inner diameter of 5 nm were produced using peak current of 2.5 A and discharging time of 1000 s.

πŸ“œ SIMILAR VOLUMES

Large scale synthesis of single-wall car
Large scale synthesis of single-wall carbon nanotubes by arc-discharge method
✍ Zujin Shi; Yongfu Lian; Fu Hui Liao; Xihuang Zhou; Zhennan Gu; Y Zhang; S Iijima πŸ“‚ Article πŸ“… 2000 πŸ› Elsevier Science 🌐 English βš– 973 KB

Using a graphite rod with a hole filled with the powder of a mixture of Y-Ni alloy and graphite or calcium carbide and nickel as anode, single-wall carbon nanotubes (SWCNTs) with high yield were produced in quantity of tens of grams a day under the arc conditions of 40 Ο³ 60 A d.c. and helium pressur

Synthesis and subsequent purification of
Synthesis and subsequent purification of carbon nanotubes by arc discharge in NaCl solution
✍ Jahanshahi, Mohsen ;Raoof, Jahan-Bakhsh ;Hajizadeh, Solmaz ;Seresht, Razieh Jaba πŸ“‚ Article πŸ“… 2009 πŸ› John Wiley and Sons 🌐 English βš– 729 KB

## Abstract Carbon nanotubes (CNTs) are fascinating structures with a wide range of applications and several methods have been developed for their fabrication. The arc‐discharge in liquid method is a new technique for synthesis of nanocarbon structures and is recognized as a low‐cost method. In thi