Journal of Materials Science

, Volume 50, Issue 24, pp 7975–7984 | Cite as

Synthesis of hyperbranched polyferrocenylsilanes as preceramic polymers for Fe/Si/C ceramic microspheres with porous structures

  • Yanzi Gou
  • Xuan Tong
  • Qiance Zhang
  • Hao Wang
  • Bing Wang
  • Song Xie
  • Yingde Wang
Original Paper


As organometallic polymers containing Fe and Si in the main chain, hyperbranched polyferrocenylsilanes (PFS) have great potential to be Fe/Si/C ceramic precursors. In this study, three kinds of hyperbranched PFS with different crosslinking structures were synthesized by the reaction between ferrocenyl dilithium and one or two of trichloromethylsilane, dichlorodimethylsilane, and dichloromethylvinylsilane. The compositions and structures of these polymers were characterized by nuclear magnetic resonance spectroscopy, gel permeation chromatography, Fourier transform infrared (FT-IR) spectroscopy, and thermal gravimetric analysis. With respect to their ceramic yield and solubility, the potential of the obtained PFS to be used as ceramic precursors was evaluated. Moreover, ceramic microspheres with porous structures were obtained by pyrolysis of the hyperbranched PFS at different temperatures, which were characterized by FT-IR, X-ray diffraction, vibrating sample magnetometer, and element analysis. By introducing Fe to the original precursors, the ceramic microspheres exhibited catalytic properties with the presence of Fe nanoparticles on the surface of the internal pores. The porous Fe/Si/C ceramic microspheres made from the hyperbranched PFS have significant potential applications in the field of catalyst supports, energy storage, and gas separation, especially in harsh environments.

Graphical abstract


Hyperbranched Polymer Ferrocenyl Polymer Microsphere Weight Average Molecular Weight High Molecular Weight Fraction 
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.



This research was sponsored by the National Natural Science Foundation of China (Grant No: 51302313) and Research Project of NUDT (JC13-01-05). The financial support from Postdoctoral Science Foundation of China (2014M552685) was appreciated as well.

Supplementary material

10853_2015_9362_MOESM1_ESM.docx (2.7 mb)
Supplementary material 1 (DOCX 2741 kb)


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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • Yanzi Gou
    • 1
  • Xuan Tong
    • 1
  • Qiance Zhang
    • 1
  • Hao Wang
    • 1
  • Bing Wang
    • 1
  • Song Xie
    • 1
  • Yingde Wang
    • 1
  1. 1.Science and Technology on Advanced Ceramic Fibers and Composites LaboratoryNational University of Defense TechnologyChangshaPeople’s Republic of China

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