Journal
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
Volume 198, Issue -, Pages 108-112Publisher
ELSEVIER
DOI: 10.1016/j.mseb.2015.04.005
Keywords
Core/shell structures; Fe/CNT hybrid; Chemical vapor deposition; Microwave absorption properties
Funding
- International Cooperation Project of Guizhou Province [2012-7002]
- National Science Foundation of Guizhou province [2014-2059]
- Foundation of the National Natural Science Foundation of China [11364005, 11174132]
- Foundation of the National Key Project for Basic Research [2012CB932304, 2011CB922102]
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Using hollow Fe2O3 particles as the catalyst, the core/shell structured Fe/carbon nanotube (CNT) hybrid could be synthesized by a chemical vapor deposition method without the hydrogen reduction process. Based on the obtained results, a possible growth mechanism of the Fe/CNT hybrid was discussed. And the investigations of electromagnetic and microwave absorption performances indicate that a minimum reflection loss (RL) value of the obtained sample is ca. -40.15 dB at 17.15 GHz with a matching thickness of 1.5 mm, and the RL value below -20 dB can be obtained in the whole frequency range (1.0-18 GHz) with the sample thickness varies from 1.3 to 10.0 mm. The results demonstrate that a simple and environment-friendly route has been proposed for the production of core/shell structured carbon nanohybrid. The obtained Fe/CNT hybrid exhibits excellent microwave absorption properties and has potential applications in thin thickness and light-weight microwave absorbers. (C) 2015 Elsevier B.V. All rights reserved.
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