Abstract
A novel type of composite absorber, i.e. Fe2O3/Fe3O4/MWCNTs composites (0%, 1.7% and 5% MWCNTs), with microwave absorption properties was successfully fabricated by a facile hydrothermal method. The prepared α-Fe2O3/Fe3O4 nanoparticles displayed rod-shaped morphology. The complex permittivity and permeability of the Fe2O3/Fe3O4/MWCNTs composites distinctly increased, furthermore, with the introduction of MWCNTs, the Fe2O3/Fe3O4/MWCNTs composites exhibited fine microwave absorption performance with strong absorption and wide absorption band. In particular, for Fe2O3/Fe3O4/1.7% MWCNTs composite with an absorber thickness of 2.5 mm, the reflection loss (RL) reached a minimum of −44.1 dB at 10.4 GHz and the effective absorption bandwidth (RL<−10 dB) covered 3.3 GHz. The enhanced microwave absorption performance of the Fe2O3/Fe3O4/MWCNTs composites was attributed to the high dielectric loss and improved impedance matching which was closely related to the rod-shaped morphology of Fe2O3, Fe3O4 and the introduction of MWCNTs.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Progress in Natural Science: Materials International
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
