中国物理B ›› 2014, Vol. 23 ›› Issue (11): 117705-117705.doi: 10.1088/1674-1056/23/11/117705

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

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

刘渊, 刘祥萱, 王煊军   

  1. No. 603 Faculty, Xi'an Research Institute of High Technology, Xi'an 710025, China
  • 收稿日期:2014-06-05 修回日期:2014-08-11 出版日期:2014-11-15 发布日期:2014-11-15

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

Liu Yuan (刘渊), Liu Xiang-Xuan (刘祥萱), Wang Xuan-Jun (王煊军)   

  1. No. 603 Faculty, Xi'an Research Institute of High Technology, Xi'an 710025, China
  • Received:2014-06-05 Revised:2014-08-11 Online:2014-11-15 Published:2014-11-15
  • Contact: Liu Xiang-Xuan E-mail:xiangxuanstudy@sina.cn

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摘要：

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.

关键词: multi-walled carbon nanotube, nano composites, electrical properties, microwave absorber

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.

Key words: multi-walled carbon nanotube, nano composites, electrical properties, microwave absorber

中图分类号:  (Composite materials)

  • 77.84.Lf
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)