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

• Published in: Chinese physics B Vol. 24; no. 8; pp. 548 - 552
• Main Author: 付晨 何大伟 王永生 富鸣 耿欣 卓祖亮
• Format: Journal Article
• Language: English
• Published: 01.08.2015
• Subjects: absorption;polyaniline;graphene-oxide;gold; Fourier transforms; Graphene; Infrared spectroscopy; microwave; Microwave absorption; Morphology; nanoparticles; Noise levels; Reflection; Transmission electron microscopy
• ISSN: 1674-1056; 2058-3834; 1741-4199
• DOI: 10.1088/1674-1056/24/8/087801

A composite of graphene/PANI/GAunano is synthesized using the co-blend method. The morphologies and microstructures of samples are examined by transition electron microscopy(TEM) and Fourier transform infrared spectroscopy(FTIR). Moreover, the microwave absorption properties of both graphene/PANI and GO/PANI/ GAunano composites are investigated in a microwave frequency band from 1 GHz to 18 GHz. The maximum reflection loss(RL) of GO/PANI/GAunano with a thickness of 2 mm is up to-24.61 d B at 15.45 GHz, and the bandwidth corresponding to RL at-10 d B can reach 4.08 GHz(from 13.92 GHz to 18.00 GHz) for a 2-mm-thick layer. The electromagnetic data demonstrate that GO/PANI/GAunano can be used as an attractive candidate for microwave absorbers.