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One‐step in situ growth of magnesium ferrite nanorods on graphene and their microwave‐absorbing properties
Author(s) -
Chen Wei,
Liu Qingyun,
Zhu Xixi,
Fu Min
Publication year - 2018
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.4017
Subject(s) - nanorod , graphene , raman spectroscopy , reflection loss , chemistry , x ray photoelectron spectroscopy , microwave , scanning electron microscope , chemical engineering , composite number , ferrite (magnet) , diffraction , analytical chemistry (journal) , absorption (acoustics) , materials science , composite material , nanotechnology , optics , organic chemistry , engineering , physics , quantum mechanics
The magnesium ferrite nanorods/graphene (MgFe 2 O 4 NR/G) composites were prepared by a facile one‐step surfactant‐assisted solvothermal method. The structure and morphology of as‐prepared composite materials were characterized by electron microscopy, energy dispersive spectrometry, Raman spectrometry, X‐ray diffraction, FT‐IR and X‐ray photoelectron spectroscopy. The homogeneous MgFe 2 O 4 nanorods with a typical diameter of about 100 nm were well distributed on graphene. The electromagnetic parameters were measured using a vector network analyzer. A minimum reflection loss (RL) of −40.3 dB was observed at 14.9 GHz with a thickness of 3 mm, and the effective absorption frequency (RL < − 10 dB) ranged from 12.0 to 18.0 GHz, indicating the remarkable microwave absorption performance of the MgFe 2 O 4 NR/G composites. The absorbing property of as‐obtained composites was better than that of the pure MgFe 2 O 4 nanorods. The synergistic effect of MgFe 2 O 4 and graphene was responsible for the enhanced absorbing performance.