Enhanced Microwave Absorption and Electromagnetic Properties of Si-Modified rGO@Fe₃O₄/PVDF-co-HFP Composites.

ABSTRACT: Graphene has been regarded as one of the most promising two-dimensional nanomaterials. Even so, graphene was still faced with several key issues such as impedance mismatching and narrow bandwidth, which have hindered the practical applications of graphene-based nanocomposites in the field of microwave absorption materials. Herein, a series of Si-modified rGO@Fe₃O₄ composites were investigated and fabricated by a simple method. On one hand, the degree of defects in graphene carbon could be tuned by different silane coupling reagents, which were beneficial to enhancing the dielectric loss. On the other hand, the spherical Fe₃O₄ nanoparticles provided the magnetic loss resonance, which contributed to controlling the impedance matching. Subsequently,

SUBMITTER: Li Y 

PROVIDER: S-EPMC7079640 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature