Abstract
In this work, reduced graphene oxide (RGO) aerogels of various pore sizes were fabricated by hydrothermal and lyophilizing processes and their influence on microwave absorption via optimization of electrical conductivity and permittivity was studied. At a fixed aerogel filler loading of 1.7 wt.%, both the electrical conductivity and permittivity of the RGO/wax composites were first increased and then decreased by increasing the pore size in the RGO aerogels. Impressively, when electrical conductivity is sufficiently high, the negative imaginary part of the permeability () can be observed at the same time. This work provides an effective method of fabricating highly efficient electromagnetic wave absorbents while optimizing dielectric loss and impedance matching behaviors, as well as direct evidence on the understanding of the negative phenomenon.
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 callDisclaimer: 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.
