Graphene oxide-ferrite hybrid framework as enhanced broadband absorption in gigahertz frequencies.

ABSTRACT: The present investigation is focused on the in-situ synthesis of Graphene oxide (GO)-ferrite nanoparticle hybrid framework by gel-combustion method followed by fabrication of homogeneous, structurally stable thin (~100-120 μm) hybrid-polyurethane coating on a metallic aluminum substrate and its application on the properties of broadband absorption over the microwave frequency region. Microstructure studies of hybrid materials illustrated that small sized ferrite nanoparticles (~17 nm) are grafted on and through the graphene layers, which forms a homogeneous coating thereby. The hybrid-nanocomposite coating demonstrated superior broadband absorption properties with absorptivity higher than 90% throughout a bandwidth of ~6 GHz, and moreover, it was found that with increased loading of GO in

SUBMITTER: Bhattacharyya R 

PROVIDER: S-EPMC6702174 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature