Effect of modification of polyacrylonitrile-based graphite felts on their performance in redox fuel cell and redox flow battery

Effect of modification of polyacrylonitrile-based graphite felts on their performance in redox... The electrochemical behavior of nitrogen-doped polyacrylonitrile (PAN) -based graphite felt prepared by three pretreatment methods for the reaction of Fe3+/Fe2+ was investigated. Then the effects of three pretreatment, including doped nitrogen, heat treatment and acid treatment, on the 9,10-anthraquinone-2,7-disulphonic acid (AQDS) electrochemical reaction activity of the PAN-based graphite felt were investigated and compared. The crystal structure, the surface morphology, and surface chemical composition of the PAN-based graphite felt were characterized by X-ray diffraction, scanning electron microscopy and X-ray electron spectroscopy. The results of the electrochemical performance showed that the nitrogen content can influence the activity of PAN-based graphite felt in the reaction of Fe3+/Fe2+. Besides, the activity of PAN-based graphite felt in the AQDS electrochemical reaction was affected by the content of COOH group on the surface of graphite felt. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Power Sources Elsevier

Effect of modification of polyacrylonitrile-based graphite felts on their performance in redox fuel cell and redox flow battery

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Publisher
Elsevier
Copyright
Copyright © 2016 Elsevier B.V.
ISSN
0378-7753
D.O.I.
10.1016/j.jpowsour.2016.05.115
Publisher site
See Article on Publisher Site

Abstract

The electrochemical behavior of nitrogen-doped polyacrylonitrile (PAN) -based graphite felt prepared by three pretreatment methods for the reaction of Fe3+/Fe2+ was investigated. Then the effects of three pretreatment, including doped nitrogen, heat treatment and acid treatment, on the 9,10-anthraquinone-2,7-disulphonic acid (AQDS) electrochemical reaction activity of the PAN-based graphite felt were investigated and compared. The crystal structure, the surface morphology, and surface chemical composition of the PAN-based graphite felt were characterized by X-ray diffraction, scanning electron microscopy and X-ray electron spectroscopy. The results of the electrochemical performance showed that the nitrogen content can influence the activity of PAN-based graphite felt in the reaction of Fe3+/Fe2+. Besides, the activity of PAN-based graphite felt in the AQDS electrochemical reaction was affected by the content of COOH group on the surface of graphite felt.

Journal

Journal of Power SourcesElsevier

Published: Aug 30, 2016

References

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