Preparation of Ni/RGO composite at room temperature and its excellent wave absorption property
Bai Zhongyi1,2, Guo Xiaoqin1,2, Zhao Biao1,2, Zhang Rui1,2
1.School of Mechatronics Engineering,Zhengzhou University of Aeronautics,Zhengzhou 450046; 2.Henan Key Laboratory of Aeronautical Materials and Application Technology,Zhengzhou 450015
Abstract: Ni nanoparticles anchored on the reduced graphene oxide (RGO) composite were prepared by the hydrothermal in-situ reduction method.The phase and morphology of Ni/RGO composite were analyzed by X-ray diffraction (XRD),Fourier transform infrared spectrometer (FT-IR),Raman spectroscopy and scanning electron microscopy (SEM).The results showed that Ni nanoparticles with the diameter of 100nm were uniformly wrapped by RGO,The electromagnetic wave absorption property of RGO and Ni/RGO composites were investigated by the vector network analyzer.The sample 1(0.25mmol Ni load graphene) showed an excellent wave absorbing property.The best reflection loss was -55.9dB at 7.2GHz and the corresponding thickness is 4.5mm and the effective absorption bandwidth was 5.8 to 9.2GHz.Ni/RGO may be a promising microwave absorber with the characteristics of the low density,strong absorption,wide band and thin thickness.
白中义, 郭晓琴, 赵彪, 张锐. Ni/RGO复合材料的制备及其吸波性能的研究[J]. 化工新型材料, 2018, 46(3): 142-146.
Bai Zhongyi, Guo Xiaoqin, Zhao Biao, Zhang Rui. Preparation of Ni/RGO composite at room temperature and its excellent wave absorption property. New Chemical Materials, 2018, 46(3): 142-146.
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