Preparation of heat-treated graphite felt electrode material modified by graphene oxide/graphene

Ding Hongyu; Huang Xiuli

doi:10.7513/j.issn.1004-7638.2021.03.013

Volume 42 Issue 3

Jun. 2021

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Ding Hongyu, Huang Xiuli. Preparation of heat-treated graphite felt electrode material modified by graphene oxide/graphene[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(3): 88-93. doi: 10.7513/j.issn.1004-7638.2021.03.013

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Ding Hongyu, Huang Xiuli. Preparation of heat-treated graphite felt electrode material modified by graphene oxide/graphene[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(3): 88-93. doi: 10.7513/j.issn.1004-7638.2021.03.013

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Preparation of heat-treated graphite felt electrode material modified by graphene oxide/graphene

doi: 10.7513/j.issn.1004-7638.2021.03.013

Ding Hongyu,
Huang Xiuli^,

School of Biological and Chemical Engineering, Panzhihua University, Panzhihua 617000, Sichuan, China

Received Date: 2021-04-06
Publish Date: 2021-06-10

Abstract

Abstract

Graphene oxide was prepared by heat treatment of the graphite felt, and the graphene was further obtained on basis of the graphene oxide. The cathode material of all-vanadium redox flow battery was finally prepared by compositing the graphene oxide, graphene and the heat-treated graphite felt. The surface morphologies and electrochemical properties of the composite electrode materials were characterized by scanning electron microscopy (SEM), Fourier transforms infrared (FTIR) spectroscopy, X-ray diffraction (XRD), and charge-discharge test. The results show that the charge-discharge performances of composite electrode materials are improved. At the current density of 30 mA/cm², the current efficiency of the graphene oxide/graphite felt composite electrodes reaches 94.713%, and the current efficiency of the graphene/graphite felt composite electrodes reaches 96.482%. The electrochemical activity of the graphite felt/graphene composite electrode is the best.
- all-vanadium redox flow battery,
- cathode material,
- graphite felt,
- graphene,
- graphene oxide,
- charge-discharge performance

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References(12)

References

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