Ternary Fe3O4@C@PANi nanocomposites as high-performance supercapacitor electrode materials

Ternary Fe3O4@C@PANi nanocomposites as high-performance supercapacitor electrode materials Ternary nanocomposites based on Fe3O4@C core@shell nanoparticles encapsulated in polyaniline were synthesized by using an efficient, two-step procedure and used as supercapacitor electrode materials for the first time. The morphology of the resulting Fe3O4@C@PANi nanocomposites was characterized by transmission electron microscopic measurements, and further structural insights were obtained by Raman, X-ray diffraction, and X-ray photoelectron spectroscopic studies. In electrochemical measurements, the resulting Fe3O4@C@PANi electrode exhibited a high specific capacitance of 420 F g−1 at 0.5 A g−1 as well as an energy density of 32.7 Wh kg−1 at the power density of 500 W kg−1. Additionally, the Fe3O4@C@PANi electrode showed excellent long-term stability with 82% retention of the capacitance after 5000 cycles at 10 A g−1. These results suggest that Fe3O4@C@PANi-based supercapacitors may serve as high-rate energy storage systems. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Materials Science Springer Journals

Ternary Fe3O4@C@PANi nanocomposites as high-performance supercapacitor electrode materials

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Publisher
Springer US
Copyright
Copyright © 2018 by Springer Science+Business Media, LLC, part of Springer Nature
Subject
Materials Science; Materials Science, general; Characterization and Evaluation of Materials; Polymer Sciences; Continuum Mechanics and Mechanics of Materials; Crystallography and Scattering Methods; Classical Mechanics
ISSN
0022-2461
eISSN
1573-4803
D.O.I.
10.1007/s10853-018-2451-9
Publisher site
See Article on Publisher Site

Abstract

Ternary nanocomposites based on Fe3O4@C core@shell nanoparticles encapsulated in polyaniline were synthesized by using an efficient, two-step procedure and used as supercapacitor electrode materials for the first time. The morphology of the resulting Fe3O4@C@PANi nanocomposites was characterized by transmission electron microscopic measurements, and further structural insights were obtained by Raman, X-ray diffraction, and X-ray photoelectron spectroscopic studies. In electrochemical measurements, the resulting Fe3O4@C@PANi electrode exhibited a high specific capacitance of 420 F g−1 at 0.5 A g−1 as well as an energy density of 32.7 Wh kg−1 at the power density of 500 W kg−1. Additionally, the Fe3O4@C@PANi electrode showed excellent long-term stability with 82% retention of the capacitance after 5000 cycles at 10 A g−1. These results suggest that Fe3O4@C@PANi-based supercapacitors may serve as high-rate energy storage systems.

Journal

Journal of Materials ScienceSpringer Journals

Published: May 29, 2018

References

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