Anzeige
Erschienen in:
17.05.2017
Three-dimensional (3D) reduced graphene oxide (RGO)/zinc oxide (ZnO)/barium ferrite nanocomposites for electromagnetic absorption
Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 17/2017
EinloggenAktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.
Wählen Sie Textabschnitte aus um mit Künstlicher Intelligenz passenden Patente zu finden. powered by
Markieren Sie Textabschnitte, um KI-gestützt weitere passende Inhalte zu finden. powered by
Abstract
A three-dimensional (3D) nanocomposite of reduced graphene oxide (RGO) and zinc oxide (ZnO) was synthesized by a mild solution-process and a freeze-dried process effectively to keep the whole system fluffy. The BaFe12O19 nanocrystals were synthesized by nitrate citric acid sol–gel auto-ignition method. The electromagnetic and microwave absorption properties of 3D-RGO-ZnO/BaFe12O19 nanocomposites were investigated and this new type 3D material exhibited an efficient reflection loss value and a wide absorption bandwidth. The minimum reflection loss arrives −43.45 dB at 11.52 GHz for 7 wt% of 3D-RGO-ZnO in the nanocomposite with a thickness of 2.0 mm, and the effective absorption bandwidth is larger than 5.8 GHz (the reflection loss below −10 dB). Therefore, the 3D-RGO-ZnO/BaFe12O19 nanocomposites can be considered as an excellent material candidate for microwave absorbers.