Flower-like α-Fe2O3/ordered mesoporous carbon nanocomposite and its enhanced microwave absorption property

H. J. Wu; L. D. Wang; Y. M. Wang; S. L. Guo; H. Wu

doi:10.1179/1433075X13Y.0000000134

Flower-like α-Fe₂O₃/ordered mesoporous carbon nanocomposite and its enhanced microwave absorption property

H. J. Wu, L. D. Wang, Y. M. Wang, S. L. Guo, H. Wu

School of Physical Science and Technology

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

Three-dimensional flower-like α-Fe₂O₃ structures were grown on the surface of ordered mesoporous carbon nanorods through a facile hydrothermal method, and their electromagnetic (EM) parameters were measured at 2-18 GHz. The special geometric morphology and proper magnetic loss of α-Fe₂O₃ nanoparticles and the strong dielectric polarisations and relaxations in the composites contribute to its excellent EM wave absorption. A reflection loss exceeding -10 dB was obtained at 9·9-16·1 GHz for an absorber of 50 wt-% loading with 2·50 mm thickness layer. The result provides a novel EM wave absorbing material to meet the practical applications.

Original language	English
Pages (from-to)	273-279
Number of pages	7
Journal	Materials Research Innovations
Volume	18
Issue number	4
DOIs	https://doi.org/10.1179/1433075X13Y.0000000134
State	Published - Jun 2014

Keywords

EM parameter
Microwave absorption
Ordered mesoporous carbon

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abstract = "Three-dimensional flower-like α-Fe2O3 structures were grown on the surface of ordered mesoporous carbon nanorods through a facile hydrothermal method, and their electromagnetic (EM) parameters were measured at 2-18 GHz. The special geometric morphology and proper magnetic loss of α-Fe2O3 nanoparticles and the strong dielectric polarisations and relaxations in the composites contribute to its excellent EM wave absorption. A reflection loss exceeding -10 dB was obtained at 9·9-16·1 GHz for an absorber of 50 wt-% loading with 2·50 mm thickness layer. The result provides a novel EM wave absorbing material to meet the practical applications.",

keywords = "EM parameter, Microwave absorption, Ordered mesoporous carbon",

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year = "2014",

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T1 - Flower-like α-Fe2O3/ordered mesoporous carbon nanocomposite and its enhanced microwave absorption property

AU - Wu, H. J.

AU - Wang, L. D.

AU - Wang, Y. M.

AU - Guo, S. L.

AU - Wu, H.

PY - 2014/6

Y1 - 2014/6

N2 - Three-dimensional flower-like α-Fe2O3 structures were grown on the surface of ordered mesoporous carbon nanorods through a facile hydrothermal method, and their electromagnetic (EM) parameters were measured at 2-18 GHz. The special geometric morphology and proper magnetic loss of α-Fe2O3 nanoparticles and the strong dielectric polarisations and relaxations in the composites contribute to its excellent EM wave absorption. A reflection loss exceeding -10 dB was obtained at 9·9-16·1 GHz for an absorber of 50 wt-% loading with 2·50 mm thickness layer. The result provides a novel EM wave absorbing material to meet the practical applications.

AB - Three-dimensional flower-like α-Fe2O3 structures were grown on the surface of ordered mesoporous carbon nanorods through a facile hydrothermal method, and their electromagnetic (EM) parameters were measured at 2-18 GHz. The special geometric morphology and proper magnetic loss of α-Fe2O3 nanoparticles and the strong dielectric polarisations and relaxations in the composites contribute to its excellent EM wave absorption. A reflection loss exceeding -10 dB was obtained at 9·9-16·1 GHz for an absorber of 50 wt-% loading with 2·50 mm thickness layer. The result provides a novel EM wave absorbing material to meet the practical applications.

KW - EM parameter

KW - Microwave absorption

KW - Ordered mesoporous carbon

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Flower-like α-Fe₂O₃/ordered mesoporous carbon nanocomposite and its enhanced microwave absorption property

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Keywords

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