Journal of Materials Science

, Volume 49, Issue 20, pp 7221–7230 | Cite as

Electromagnetic and microwave absorbing properties of magnetite nanoparticles decorated carbon nanotubes/polyaniline multiphase heterostructures

Original Paper
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Abstract

Magnetite nanoparticles decorated CNTs/PANI multiphase heterostructures were prepared by polymerization of aniline monomer and an additional process of the coprecipitation of Fe2+ and Fe3+. Scanning electron microscopy and transmission electron microscopy observation indicated that the monodispersed magnetite nanoparticles were uniformly decorated on the surface of CNTs/PANI. The formation of magnetite nanoparticles on CNTs/PANI was mainly through a preferentially position-selective precipitation process. More interestingly, a portion of Fe3O4 nanoparticles was found to form core–shell structures with PANI. The effects of different additional amounts of NH2Fe(SO4)2·6H2O reactant on the magnetic properties and microwave absorbing performances of CNTs/PANI/Fe3O4 heterostructures were investigated. The CNTs/PANI/Fe3O4 multiphase heterostructures were proved to be superparamagnetic. The microwave absorption measurement showed that the CNTs/PANI/Fe3O4 samples under 1.5 g of NH2Fe(SO4)2·6H2O condition exhibited much more effective absorption performance. These results suggested the novel CNTs/PANI/Fe3O4 multiphase heterostructures with PANI as the second phase may be potential candidate for microwave absorption systems.

Keywords

PANI Dielectric Loss Fe3O4 Nanoparticles Microwave Absorption Magnetite Nanoparticles 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Notes

Acknowledgements

This work was supported by the National Science Foundation of P. R. China (Grant 50972014, 51072024 and 51132002).

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Key Laboratory of Fine Chemicals of College of Heilongjiang ProvinceQiqihar UniversityQiqiharChina
  2. 2.School of Energy and Power EngineeringUniversity of Shanghai for Science and TechnologyShanghaiChina
  3. 3.School of Materials Science and EngineeringUniversity of Shanghai for Science and TechnologyShanghaiChina
  4. 4.School of Materials Science and EngineeringBeijing Institute of TechnologyBeijingChina

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