›› 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

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

耿欣, 何大伟, 王永生, 赵文, 周亦康, 李树磊   

  1. Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing 100044, China
  • 收稿日期:2014-07-07 修回日期:2014-08-19 出版日期:2015-02-05 发布日期:2015-02-05
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant Nos. 2011CB932700 and 2011CB932703), the National Natural Science Foundation of China (Grant Nos. 61335006, 61378073, and 61077044), the Beijing Natural Science Foundation, China (Grant No. 4132031), and the Fundamental Research Funds for the Central Universities of Beijing Jiaotong University, China (Grant No. 2014YJS136).

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

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)   

  1. Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing 100044, China
  • Received:2014-07-07 Revised:2014-08-19 Online:2015-02-05 Published:2015-02-05
  • Contact: He Da-Wei, Wang Yong-Sheng E-mail:dwhe@bjtu.edu.cn;yshwang@bjtu.edu.cn
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant Nos. 2011CB932700 and 2011CB932703), the National Natural Science Foundation of China (Grant Nos. 61335006, 61378073, and 61077044), the Beijing Natural Science Foundation, China (Grant No. 4132031), and the Fundamental Research Funds for the Central Universities of Beijing Jiaotong University, China (Grant No. 2014YJS136).

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.

关键词: polyaniline, graphene-oxide, Fe3O4, impedance matching, microwave absorption

Abstract: 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.

Key words: polyaniline, graphene-oxide, Fe3O4, impedance matching, microwave absorption

中图分类号:  (Organic compounds and polymers)

  • 78.40.Me
81.05.U- (Carbon/carbon-based materials)