Affiliation of Author(s):材料科学与技术学院
Journal:JOURNAL OF COLLOID AND INTERFACE SCIENCE
Key Words:Interface FeCo/C nanocomposites Core-shell Honeycomb-like Impedance matching
Abstract:In this work, the 3-D honeycomb-like FeCo/C nanocomposites were synthesized through the carbon thermal reduction under an inert atmosphere. The enhanced microwave absorption properties of the composites were mainly attributed to the unique three dimensional structure of the FeCo/C nanocomposites, abundant interfaces and junctions, and the appropriate impedance matching. The Cole-Cole semicircles proved the sufficient dielectric relaxation process. The sample calcinated at 600 degrees C for 4 h showed the best microwave absorption properties. A maximum reflection loss of -54.6 dB was achieved at 10.8 GHz with a thickness of 2.3 mm and the frequency bandwidth was as large as 5.3 GHz. The results showed that the as-prepared FeCo/C nanocomposite could be a potential candidate for microwave absorption. (C) 2017 Elsevier Inc. All rights reserved.
ISSN No.:0021-9797
Translation or Not:no
Date of Publication:2017-12-01
Co-author:李道冉,梁小会,刘伟,lw,马建娜,张亚男,孟卫
Correspondence Author:jiguangbin