Preparation of multi-walled carbon nanotube-Fe composites and their application as light weight and broadband electromagnetic wave absorbers

doi:10.1088/1674-1056/23/11/117705

Abstract

Multi-walled carbon nanotube (MWCNT)-Fe composites were prepared via the metal organic chemical vapor deposition by depositing iron pentacarbonyl on the surface of MWCNTs. The structural and morphological analyses demonstrated that Fe nanoparticles were deposited on the surface of the MWCNTs. The electromagnetic properties of the MWCNTs were significantly changed, and the absorbing capacity evidently improved after the Fe deposition on the MWCNT surface. A minimum reflection loss of -29.4 dB was observed at 8.39 GHz, and the less than -10 dB bandwidth was about 10.6 GHz, which covered the whole X band (8.2-12.4 GHz) and the whole Ku band (12.4-18 GHz), indicating that the MWCNT-Fe composites could be used as an effective microwave absorption material.

Keywords: multi-walled carbon nanotube nano composites electrical properties microwave absorber

Received: 05 June 2014
Revised: 11 August 2014
Accepted manuscript online:

PACS:	77.84.Lf	(Composite materials)
	78.20.Ci	(Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))
	62.20.mm	(Fracture)
	81.05.Lg	(Polymers and plastics; rubber; synthetic and natural fibers; organometallic and organic materials)

Corresponding Authors: Liu Xiang-Xuan
E-mail: xiangxuanstudy@sina.cn

Cite this article:

Liu Yuan (刘渊), Liu Xiang-Xuan (刘祥萱), Wang Xuan-Jun (王煊军) Preparation of multi-walled carbon nanotube-Fe composites and their application as light weight and broadband electromagnetic wave absorbers 2014 Chin. Phys. B 23 117705

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Preparation of multi-walled carbon nanotube-Fe composites and their application as light weight and broadband electromagnetic wave absorbers

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