›› 2015, Vol. 24 ›› Issue (2): 27803-027803.doi: 10.1088/1674-1056/24/2/027803
• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇 下一篇
耿欣, 何大伟, 王永生, 赵文, 周亦康, 李树磊
Geng Xin (耿欣), He Da-Wei (何大伟), Wang Yong-Sheng (王永生), Zhao Wen (赵文), Zhou Yi-Kang (周亦康), Li Shu-Lei (李树磊)
摘要: In order to investigate the impedance matching properties of microwave absorbers, the ternary nanocomposites of GO/PANI/Fe3O4 (GPF) are prepared via a two-step method, GO/PANI composites are synthesized by dilute polymerization in the presence of aniline monomer and GO, and GO/PANI/Fe3O4 is prepared via a co-precipitation method. The obtained nanocomposites are characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR), respectively. The microwave absorbability reveals enhanced microwave absorption properties compared with GO, PANI, and GO/PANI. The maximum reflection loss of GO/PANI/Fe3O4 is up to -27 dB at 14 GHz with its thickness being 2 mm, and its absorption bandwidths exceeding -10 dB are more than 11.2 GHz with its thickness values being in the range from 1.5 mm-4 mm. It provides that GO/PANI/Fe3O4 can be used as an attractive candidate for microwave absorbers.
中图分类号: (Organic compounds and polymers)