Details

Autor(en) / Beteiligte

• Liu, Yiran
• Lin, Ying
• Yang, Haibo

Titel

Facile fabrication for core-shell BaFe12O19@C composites with excellent microwave absorption properties

Ist Teil von

• Journal of alloys and compounds, 2019-10, Vol.805, p.130-137

Ort / Verlag

Lausanne: Elsevier B.V

Erscheinungsjahr

2019

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• A novel core-shell BaFe12O19@C composite with glucose-based carbon was successfully synthesized by the hydrothermal carbonization and subsequent calcinations. The phase structure, morphology and the microwave absorption properties of all the as-prepared samples were characterized by XRD, SEM and vector network analyzer, respectively. The results show that dielectric loss of BaFe12O19@C composites can be enhanced due to the introduction of carbon, which causes improved matching impedance and microwave absorption properties of BaFe12O19@C composites. The optimal maximum reflection loss is −73.42 dB with a thickness of 1.40 mm in the frequency range of 2–18 GHz. We believe that the BaFe12O19@C composites are promising candidates as highly effective microwave absorbers. Furthermore, the biomass carbon is expected to have further applications in the field of microwave absorption. •A novel core-shell BaFe12O19@C composite is synthesized by glucose as carbon source.•Biomass carbon effectively improves impedance matching and absorption of EM wave.•The optimal maximum reflection loss is −73.42 dB with a thickness of 1.4 mm.