Journal
NEW CARBON MATERIALS
Volume 28, Issue 3, Pages 184-190Publisher
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DOI: 10.1016/S1872-5805(13)60075-X
Keywords
Multi-walled carbon nanotubes; Fe3O4 nanoparticles; Electromagnetic wave absorbing property
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Funding
- Specialized Research Fund for the Doctoral Program of Higher Education [20096102120016]
- Innovation Foundation of China Aerospace Science and Technology [CASC200906, CASC201106]
- China Aerospace Science and Technology [CASC201209]
- Foundation for Fundamental Research of Northwestern Polytechnical University [JC201030]
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Multi-wall carbon nanotube/Fe3O4 hybrids were prepared by a chemical synthesis-hydrothermal treatment method and their electromagnetic wave absorbing properties were investigated in the frequency range of 8.2-12.4 GHz (X band). As-prepared hybrids were characterized by transmission electron microscopy, X-ray diffraction and vibrating sample magnetometer. Results indicated that the surface of multi-wall carbon nanotubes was attached to magnetic Fe3O4 nanoparticles. The Fe3O4 content increased and the magnetism of the hybrids was enhanced by increasing the concentrations of Fe2+ and Fe3+ in solution. The minimum reflection loss (-18.22 dB, 12.05 GHz) was the lowest and the absorbing bandwidth was the widest when the concentrations of Fe2+ and Fe3+ were 0.02 and 0.04 mol/L, respectively.
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