Structural regulation of polypyrrole nanospheres guided by hydrophobic chain length of surfactants

  • Zekun Zhou
  • Yun Shao
  • Xiang Gao
  • Zhitian LiuEmail author
  • Qi ZhangEmail author
Chemical routes to materials


Nanostructures of polypyrrole with controlled uniform morphologies have been synthesized using assembled surfactant aggregates as templates. The effects of hydrophobic chain length of surfactant on particle size and electrochemical performance of polypyrrole nanospheres are systematically studied. The particle size and morphology of the nanospheres are observed by scanning electron microscope and transmission electron microscope, and at the same time, the nitrogen adsorption and desorption test of polypyrrole spheres are carried out. The results show that changing the length of hydrophobic chain of surfactant is not only an effective control of particle size and morphology, but also a significant improvement on the pore structure. With the increase in alkyl chain length, the particle size decreases, and the specific surface area and pore volume increase. The polypyrrole nanosphere prepared by long hydrophobic chain surfactant shows small impedance and high electrochemical capacity about 232 F g−1 at 1.0 A g−1, and the results suggest that we can fabricate high specific surface area polypyrrole nanosphere which has excellent electrochemical performance by the regulation of hydrophobic chain length. Our work provides a novel synthetic strategy for the fabrication of nanospheres for the construction of high-performance supercapacitors by optimizing the hydrophobic chain length.



This work was supported by Wuhan Yellow Crane Program for Excellent Talents, Hubei Technology Innovation Major Project (2016AAA030), the Foundation for Outstanding Youth Innovative Research Groups of Higher Education Institution in Hubei Province (T201706), the Foundation for Innovative Research Groups of Hubei Natural Science Foundation of China (2017CFA009).

Supplementary material

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Supplementary material 1 (DOCX 1623 kb)


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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Institute of Materials for Optoelectronics and New Energy, School of Material Science and EngineeringWuhan Institute of TechnologyWuhanPeople’s Republic of China

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