Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 9, Issue 16, Pages 14103-14111Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b03330
Keywords
ZnFe2O4@SiO2@RGO nanocomposites; coating-coating route; core shell; electromagnetic wave; reflection oss
Funding
- National Nature Science Foundation of China [21071125]
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Hierarchical structured ZnFe2O4@SiO2@RGO core shell nanocomposites were prepared via a coating -coating route,, and its structure, composition and electromagnetic properties were characterized. Compared with the binary composites of ZnFe(2)o(4)@SiO2, the hierarchical ZnFe2O4@SiO2@RGO ternary composites exhibited enhanced electromagnetic wave (EMW) absorption properties in terms of the effective bandwidth and minimum reflection loss (RL). Furthermore, EMW absorption properties of the prepared samples can be tuned' by changing RGO content and thickness of SiO2 layer to reach the best impedance match. The minimum RL of the sample with a thickness of 2.8 mm can reach -43.9 dB at 13.9 GHz, and its effective bandwidth (RL <=-10 dB) was up to 6 GHz. Hence, the obtained products, can be a new candidate, for lightweight EMW absorbing materials.
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