Electrospining Machine:Prof. Peng Zhang & Prof. Guosheng Shao, Zhengzhou University: Rational design of one-dimensional skin-core multilayer structure Electrospun Nanofbers for high-performance supercapacitors

Background

The fast transfer of electrons and ions within the electrode is crucial for the final electrochemical performance. In view of this, Prof. Peng Zhang & Prof. Guosheng Shao, Zhengzhou University, et al. developed a unique ultra-long one-dimensional (1D) skin-core multilayer structure for electrospun nanofibers based on Electrospun Nanofibers by combining resorcinol-formaldehyde resins through a facile Stöber method to realize high-performance supercapacitors.

The related research results are summarized as “Rational design of one-dimensional skin-core multilayer structure for electrospun carbon nanofibers with bicontinuous Rational design of one-dimensional skin-core multilayer structure for electrospun carbon nanofibers with bicontinuous electron/ion transport toward high-performance supercapacitors” was published in the Journal of Colloid and Interface Science.

The main points of this paper

1. In this study, a unique ultra-long one-dimensional skin-core multilayer structure based on Electrospun Nanofbers was successfully developed by a facile Stöber method combined with resorcinol-formaldehyde resin.

2. The structure not only realizes the bicontinuous electron/ion transport during the charging/discharging process, but also provides a large surface area for ion adsorption.

3. Due to the synergistic effect of the ideal structure, it can provide high specific capacitance at 0.5 A g-1 as a supercapacitor electrode.

Key findings and insights presented in this study include:

1. One-dimensional skin-core multilayer structure for Electrospun Nanofbers was successfully prepared.

2. Bicontinuous electron/ion transport was realized during the charging and discharging process.

3. Electrospun Nanofbers have a large surface area and a hollow layered porous structure.

4. The ability to adjust the number of active layers or sites significantly improves the capacitive properties of the material.

5. High energy density of 8.77 Wh kg-1 at 0.25 kW kg-1 is realized.

The electrochemical properties of TCF, TCF- SL, TCF- DL and TCF- TL were determined under KOH conditions.

Originallink: https://doi.org/10.1016/j.jcis.2023.09.064