Nanoparticle-assisted microwave absorption by single-wall carbon nanotubes

Description:

This article discusses nanoparticle-assisted microwave absorption by single-wall carbon nanotubes.

Creator(s):
Creation Date: September 29, 2003
Partner(s):
UNT College of Arts and Sciences
Collection(s):
UNT Scholarly Works
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Creator (Author):
Wadhawan, Atul

University of North Texas

Creator (Author):
Garrett, David

University of North Texas

Creator (Author):
Pérez, José M.

University of North Texas

Publisher Info:
Place of Publication: [College Park, Maryland]
Date(s):
  • Creation: September 29, 2003
Description:

This article discusses nanoparticle-assisted microwave absorption by single-wall carbon nanotubes.

Degree:
Department: Physics
Note:

Copyright 2003 American Institute of Physics. Applied Physics Letters, 83:13, http://apl.aip.org/resource/1/applab/v83/i13/p2683_s1

Note:

Abstract: We report the effects of microwave irradiation on both unpurified and purified iron-catalyzed high-pressure disproportionation (HiPco)-grown single-walled carbon nanotubes (SWNTs) in ultrahigh vacuum. Under microwave irradiation, we observe that unpurified HiPco SWNTs quickly reach temperatures of approximately 1850 ºC. As a result, H2, H2O, CO, CO2, and CH4 gases are observed, and the Fe catalyst nanoparticles melt and coalesce into larger crystallites approximately four times their original diameter. In contrast, carbon black and purified HiPco SWNTs heat up to temperatures of 500-650 ºC. We propose that the significant heating of unpurified HiPco SWNTs is due to the Fe catalysts.

Physical Description:

3 p.

Language(s):
Subject(s):
Keyword(s): iron | catalysts | radiation effects | nanoparticles | electromagnetic wave absorption
Source: Applied Physics Letters, 2003, College Park: American Institute of Physics, pp. 2683-2685
Partner:
UNT College of Arts and Sciences
Collection:
UNT Scholarly Works
Identifier:
  • DOI: 10.1063/1.1615679 |
  • ARK: ark:/67531/metadc84153
Resource Type: Article
Format: Text
Rights:
Access: Public
Citation:
Publication Title: Applied Physics Letters
Volume: 83
Issue: 13
Page Start: 2683
Page End: 2685
Peer Reviewed: Yes