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Ramadan M, Abdellah AM, Mohamed SG, et al. 3D Interconnected Binder-Free Electrospun MnO@C Nanofibers for Supercapacitor Devices. Sci Rep. 2018;8(1):7988doi: 10.1038/s41598-018-26370-z.
Ramadan, M., Abdellah, A. M., Mohamed, S. G., & Allam, N. K. (2018). 3D Interconnected Binder-Free Electrospun MnO@C Nanofibers for Supercapacitor Devices. Scientific reports, 8(1), 7988. https://doi.org/10.1038/s41598-018-26370-z
Ramadan, Mohamed, et al. "3D Interconnected Binder-Free Electrospun MnO@C Nanofibers for Supercapacitor Devices." Scientific reports vol. 8,1 (2018): 7988. doi: https://doi.org/10.1038/s41598-018-26370-z
Ramadan M, Abdellah AM, Mohamed SG, Allam NK. 3D Interconnected Binder-Free Electrospun MnO@C Nanofibers for Supercapacitor Devices. Sci Rep. 2018 May 22;8(1):7988. doi: 10.1038/s41598-018-26370-z. PMID: 29789633; PMCID: PMC5964253.
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Sci Rep. 2018 May 22;8(1):7988. doi: 10.1038/s41598-018-26370-z.

3D Interconnected Binder-Free Electrospun MnO@C Nanofibers for Supercapacitor Devices.

Scientific reports

Mohamed Ramadan, Ahmed M Abdellah, Saad G Mohamed, Nageh K Allam

Affiliations

  1. Energy Materials Laboratory (EML), School of Sciences and Engineering, The American University in Cairo, New Cairo, 11835, Egypt.
  2. Energy Materials Laboratory (EML), School of Sciences and Engineering, The American University in Cairo, New Cairo, 11835, Egypt. [email protected].

PMID: 29789633 PMCID: PMC5964253 DOI: 10.1038/s41598-018-26370-z

Abstract

Rational design of binder-free materials with high cyclic stability and high conductivity is a great need for high performance supercapacitors. We demonstrate a facile one-step synthesis method of binder-free MnO@C nanofibers as electrodes for supercapacitor applications. The topology of the fabricated nanofibers was investigated using FESEM and HRTEM. The X-ray photoelectron spectroscopy (XPS) and the X-ray diffraction (XRD) analyses confirm the formation of the MnO structure. The electrospun MnO@C electrodes achieve high specific capacitance of 578 F/g at 1 A/g with an outstanding cycling performance. The electrodes also show 127% capacity increasing after 3000 cycles. An asymmetric supercapacitor composed of activated carbon as the negative electrode and MnO@C as the positive electrode shows an ultrahigh energy density of 35.5 Wh/kg with a power density of 1000 W/kg. The device shows a superior columbic efficiency, cycle life, and capacity retention.

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