Three-Dimensional Bi2Fe4O9 Nanocubes Loaded on Reduced Graphene Oxide for Enhanced Electromagnetic Absorbing Properties

Autor: Min Lu, Yuan-Kai Sun, Shu-Hao Yang, Hui-Ya Wang, Xiao-Hui Guan, Guang-Sheng Wang
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Frontiers in Chemistry, Vol 8 (2020)
Druh dokumentu: article
ISSN: 2296-2646
DOI: 10.3389/fchem.2020.00608
Popis: Bi2Fe4O9(BFO) nanocubes were prepared in proportion using a simple and easy hydrothermal method, and were then assembled on reduced graphene oxide (rGO) multilayered sheets. The excellent microwave absorption properties of Bi2Fe4O9/rGO nanohybrids were achieved by properly adjusting the impedance matching and getting a high attenuation capability contributed from different ratios of the BFO and rGO. A minimum reflection loss value of −61.5 dB at 12.8 GHz was obtained with a Bi2Fe4O9/rGO ratio of 2:1, and the broadest bandwidth below −10 dB was up to 5.0 GHz (from 10.8 to 15.8 GHz) with a thickness of 2.4 mm. Additionally, the elementary mechanism of wave absorption performance is also investigated.
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