, Volume 26, Issue 6, pp 4071–4084 | Cite as

Pulse-potential electrochemical fabrication of coaxial-nanostructured polypyrrole/multiwall carbon nanotubes networks on cotton fabrics as stable flexible supercapacitor electrodes with high areal capacitance

  • Hong Zhao
  • Bo Yang
  • Man Zhou
  • Zhihang Jin
  • Caihong Liu
  • Zaisheng Cai
  • Yaping ZhaoEmail author
Original Research


Flexible supercapacitors (FSCs) with a high areal capacitance are essential for future wearable energy-storage devices due to the limitation of available area on the surface of the human body (< 2 m2). To achieve the performance with high areal capacitance, the surface structure of electrodes should be designed carefully. In this paper, a hierarchical composite electrode based on coaxial-nanostructured polypyrrole (PPy) and multiwall carbon nanotube (MWCNT) was electrochemical co-deposited on the surface of the MWCNT-coated cotton fabric (MCF) by a facile pulse potential method. The pulse potential co-deposition conditions-lower potential (EL), the number of cycles (NC) and EL duration time (tL)-played crucial roles in the uniform distribution of MWCNT within PPy/MWCNT composites, thickness of PPy shell and porous morphology. The three-dimension porous networks of PPy/MWCNT/MCF electrodes not only enhanced the efficiency of faradaic redox reactions but also facilitated the accessibility of the electrolyte to electrode surface, accordingly presenting an ultrahigh areal specific capacitance of 5.05 F cm−2 (0.001 V s−1) and unexceptionable cycling stability of 129.20% specific capacitance retention (1000 cycles, 0.02 V s−1). This work provides a new route to develop FSCs electrodes and shows a promising application in wearable energy-storage technology.

Graphical abstract


Pulse potential co-deposition Polypyrrole Multiwall carbon nanotubes Flexible supercapacitors Coaxial nanostructure 



This research was funded by the National Natural Science Foundation of China (51303022), the Fundamental Research Funds for the Central Universities (2232015D3-17) and Industry-University-Institute Project (Booster Plan) of Shanghai Municipal Education Commission (15cxy55).

Supplementary material

10570_2019_2370_MOESM1_ESM.docx (3.7 mb)
Supplementary material 1 (DOCX 3797 kb)


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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  • Hong Zhao
    • 1
  • Bo Yang
    • 1
  • Man Zhou
    • 1
  • Zhihang Jin
    • 1
  • Caihong Liu
    • 1
  • Zaisheng Cai
    • 1
  • Yaping Zhao
    • 1
    Email author
  1. 1.Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and BiotechnologyDonghua UniversityShanghaiPeople’s Republic of China

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