Synthesis and microwave absorption properties of graphene-oxide(GO)/polyaniline nanocomposite with Fe3O4 particles

• 作者: 何大伟 周亦康 李树磊 王永生 耿欣 赵文
• 来源期刊: 中国物理B（英文版）
• 关键词: polyaniline graphene-oxide Fe3O4 impedance matching microwave absorption
• 年，卷（期）: 2015,（2）
• 页码范围: 057803-1-027803-5
• 页数: 1页
• 语种: 英文
• DOI: 10.1088/1674-1056/24/2/027803

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 microscope (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 a range of 1.5 mm–4 mm. It provides that GO/PANI/Fe3O4 can be used as an attractive candidate for microwave absorbers.