title: Synthesis of Hierarchical ZnFe2O4@SiO2@RGO Core-Shell Microspheres for Enhanced Electromagnetic Wave Absorption.
abstract: 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 ZnFe2O4@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 SiO2layer 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.
authors.affiliation: College of Chemistry and Life Sciences, Zhejiang Normal University , Jinhua, Zhejiang 321004, China.
authors.forename: Jiantao
authors.initials: J
authors.lastname: Feng
authors.affiliation: College of Chemistry and Life Sciences, Zhejiang Normal University , Jinhua, Zhejiang 321004, China.
authors.forename: Yanhui
authors.initials: Y
authors.lastname: Hou
authors.affiliation: College of Chemistry and Life Sciences, Zhejiang Normal University , Jinhua, Zhejiang 321004, China.
authors.forename: Yechen
authors.initials: Y
authors.lastname: Wang
authors.affiliation: College of Chemistry and Life Sciences, Zhejiang Normal University , Jinhua, Zhejiang 321004, China.
authors.forename: Liangchao
authors.identifier: http://orcid.org/0000-0002-3434-1810
authors.initials: L
authors.lastname: Li
keywords: ZnFe2O4@SiO2@RGO nanocomposites; coating−coating route; core−shell; electromagnetic wave; reflection loss