Logo

Magnetic Characterization of web-like Carbon Nanotubes Catalyzed by Fe2O3 Via Pulsed Laser Ablation Deposition (PLAD) Technique

Ismail, Ismayadi and Yahya, Noorhana and Hashim, Mansor (2011) Magnetic Characterization of web-like Carbon Nanotubes Catalyzed by Fe2O3 Via Pulsed Laser Ablation Deposition (PLAD) Technique. [Citation Index Journal]

[img] PDF
Restricted to Registered users only

1048Kb

Abstract

Web-like carbon nanotubes were synthesized via Laser Ablation Deposition (PLAD) in a T-shape stainless steel chamber. Nd-YAG laser with 532nm wavelength was used to irradiate the target of graphite and catalyst, with 5-7 ns pulsed width. Fe2O3 was used as catalyst to form the graphite target. The vacuum level was kept at 5 mtorr with argon gas flowing from bottom of the chamber. The plume that was deposited on a glass substrate and was then characterized using Scanning Electron Microscope (SEM), Energy Dispersive X-ray (EDX) analysis, Transmission Electron Microscope (TEM) and Vibrating Sample Magnetometer (VSM). Web-like CNTs structures were deposited on the glass substrate. These web-like structures randomly aligned with the size of 99nm to 234nm. TEM images have confirmed these web-like structures are CNTs. VSM results show that the encapsulation of the Fe2O3 catalyst has influenced the magnetic properties of the CNTs. The magnetic property of CNTs was increased with the increasing amount of the Fe2O3 catalyst filled the tube of CNTs.

Item Type:Citation Index Journal
Subjects:L Education > L Education (General)
Departments / MOR / COE:Research Institutes > Energy
ID Code:7366
Deposited By: Assoc Prof Dr Noorhana Yahya
Deposited On:10 Jan 2012 00:12
Last Modified:19 Jan 2017 08:23

Repository Staff Only: item control page

Document Downloads

More statistics for this item...