Abstract
SnO2/α-Fe2O3@RGO composites were prepared through a solvothermal method. The phase structure, morphology, and electromagnetic (EM)-wave-absorbing properties of the as-prepared samples were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and vector network analyzer. Results indicated that the remarkable EM wave absorption properties of the samples resulted from the interaction between lamella-structured reduced graphene oxide and semiconductor-heterostructured SnO2/α-Fe2O3. The optical reflection loss calculated from the measured complex permittivity and permeability was −44.33 dB at 12.64 GHz. Meanwhile, the Fe3+/Sn4+ molar ratio in the composites was 6:1, and the coating thickness was 2 mm. The bandwidth below −10 dB was 4.4 GHz (10.80–15.20 GHz). Therefore, SnO2/α-Fe2O3@RGO could serve as a high-performance EM-wave-absorbing material.
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This work was supported by the National Natural Science Foundation of China (Grant 51477002), and the Graduate Innovation Fund Project of Anhui University of Science and Technology.
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Shen, Z., Xing, H., Zhu, Y. et al. Synthesis and enhanced microwave-absorbing properties of SnO2/α-Fe2O3@RGO composites. J Mater Sci: Mater Electron 28, 13896–13904 (2017). https://doi.org/10.1007/s10854-017-7238-2
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DOI: https://doi.org/10.1007/s10854-017-7238-2