Electromagnetic wave absorbing properties of aligned amorphous carbon nanotube/BaFe12O19nanorod composite

Tingkai Zhao; Xianglin Ji; Wenbo Jin; Shasha Guo; Haoyu Zhao; Wenhui Yang; Xinqi Wang; Chuanyin Xiong; Alei Dang; Hao Li; Tiehu Li; Songmin Shang; Zhongfu Zhou

doi:10.1016/j.jallcom.2017.02.014

Electromagnetic wave absorbing properties of aligned amorphous carbon nanotube/BaFe₁₂O₁₉nanorod composite

Tingkai Zhao, Xianglin Ji, Wenbo Jin, Shasha Guo, Haoyu Zhao, Wenhui Yang, Xinqi Wang, Chuanyin Xiong, Alei Dang, Hao Li, Tiehu Li, Songmin Shang, Zhongfu Zhou

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

39 Citations (Scopus)

Abstract

Aligned amorphous carbon nanotube (AACNT)/BaFe12O19nanorod (BNR) composite was prepared by chemical vapor deposition and ball-milling methods. Raman and XRD tests were performed to investigate the microstructures, and the microwave absorbing properties of the as prepared composite were characterized using a vector network analyzer. The experimental results indicated that the mean length of as-prepared ACNT arrays was about 24 μm and the average length of BNRs were about 50 nm. The maximum absorbing peak of AACNTs/BNR composite is −21.5 dB at the frequency of 9.3 GHz. The frequency bandwidth of the reflectivity loss below −10 dB is about 2.5 GHz. AACNTs have both features of amorphous CNTs which have multiple-reflective path inside the tube-wall and crystalline CNTs which have high conductivity.

Original language	English
Pages (from-to)	424-430
Number of pages	7
Journal	Journal of Alloys and Compounds
Volume	703
DOIs	https://doi.org/10.1016/j.jallcom.2017.02.014
Publication status	Published - 1 Jan 2017

Keywords

Aligned array
Amorphous carbon nanotubes (ACNTs)
BaFe O nanorods (BNRs) 12 19
Electromagnetic wave absorbing properties

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

More information

10.1016/j.jallcom.2017.02.014

Cite this

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title = "Electromagnetic wave absorbing properties of aligned amorphous carbon nanotube/BaFe12O19nanorod composite",

abstract = "Aligned amorphous carbon nanotube (AACNT)/BaFe12O19nanorod (BNR) composite was prepared by chemical vapor deposition and ball-milling methods. Raman and XRD tests were performed to investigate the microstructures, and the microwave absorbing properties of the as prepared composite were characterized using a vector network analyzer. The experimental results indicated that the mean length of as-prepared ACNT arrays was about 24 μm and the average length of BNRs were about 50 nm. The maximum absorbing peak of AACNTs/BNR composite is −21.5 dB at the frequency of 9.3 GHz. The frequency bandwidth of the reflectivity loss below −10 dB is about 2.5 GHz. AACNTs have both features of amorphous CNTs which have multiple-reflective path inside the tube-wall and crystalline CNTs which have high conductivity.",

keywords = "Aligned array, Amorphous carbon nanotubes (ACNTs), BaFe O nanorods (BNRs) 12 19, Electromagnetic wave absorbing properties",

author = "Tingkai Zhao and Xianglin Ji and Wenbo Jin and Shasha Guo and Haoyu Zhao and Wenhui Yang and Xinqi Wang and Chuanyin Xiong and Alei Dang and Hao Li and Tiehu Li and Songmin Shang and Zhongfu Zhou",

year = "2017",

month = jan,

day = "1",

doi = "10.1016/j.jallcom.2017.02.014",

language = "English",

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pages = "424--430",

journal = "Journal of the Less-Common Metals",

issn = "0925-8388",

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TY - JOUR

T1 - Electromagnetic wave absorbing properties of aligned amorphous carbon nanotube/BaFe12O19nanorod composite

AU - Zhao, Tingkai

AU - Ji, Xianglin

AU - Jin, Wenbo

AU - Guo, Shasha

AU - Zhao, Haoyu

AU - Yang, Wenhui

AU - Wang, Xinqi

AU - Xiong, Chuanyin

AU - Dang, Alei

AU - Li, Hao

AU - Li, Tiehu

AU - Shang, Songmin

AU - Zhou, Zhongfu

PY - 2017/1/1

Y1 - 2017/1/1

N2 - Aligned amorphous carbon nanotube (AACNT)/BaFe12O19nanorod (BNR) composite was prepared by chemical vapor deposition and ball-milling methods. Raman and XRD tests were performed to investigate the microstructures, and the microwave absorbing properties of the as prepared composite were characterized using a vector network analyzer. The experimental results indicated that the mean length of as-prepared ACNT arrays was about 24 μm and the average length of BNRs were about 50 nm. The maximum absorbing peak of AACNTs/BNR composite is −21.5 dB at the frequency of 9.3 GHz. The frequency bandwidth of the reflectivity loss below −10 dB is about 2.5 GHz. AACNTs have both features of amorphous CNTs which have multiple-reflective path inside the tube-wall and crystalline CNTs which have high conductivity.

AB - Aligned amorphous carbon nanotube (AACNT)/BaFe12O19nanorod (BNR) composite was prepared by chemical vapor deposition and ball-milling methods. Raman and XRD tests were performed to investigate the microstructures, and the microwave absorbing properties of the as prepared composite were characterized using a vector network analyzer. The experimental results indicated that the mean length of as-prepared ACNT arrays was about 24 μm and the average length of BNRs were about 50 nm. The maximum absorbing peak of AACNTs/BNR composite is −21.5 dB at the frequency of 9.3 GHz. The frequency bandwidth of the reflectivity loss below −10 dB is about 2.5 GHz. AACNTs have both features of amorphous CNTs which have multiple-reflective path inside the tube-wall and crystalline CNTs which have high conductivity.

KW - Aligned array

KW - Amorphous carbon nanotubes (ACNTs)

KW - BaFe O nanorods (BNRs) 12 19

KW - Electromagnetic wave absorbing properties

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DO - 10.1016/j.jallcom.2017.02.014

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SN - 0925-8388

VL - 703

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EP - 430

JO - Journal of the Less-Common Metals

JF - Journal of the Less-Common Metals

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