2023
DOI: 10.1002/asia.202201242
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Recent Advances for Electrode Modifications in Flow Batteries: Properties, Mechanisms, and Outlooks

Abstract: At present, the traditional CF and GF product need to go through processes such as spinning, oxidation, carbonization, graphitization, surface treatment, and sizing. [7a,55] The process flow is various and complicated, and further performance Review

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Cited by 5 publications
(7 citation statements)
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“…The enhancement in the average energy efficiency rises from approximately 3.2% at 10 mA cm –2 to 16.1% at 50 mA cm –2 . The performance improvement in the anthraquinone/ferrocyanide FB with the rGO-modified felt is due to a combination of the presence of catalytic oxygenated groups at its surface, enhanced wettability, and probably extended surface area, as in the case of other modified electrodes . The improvement is modest compared to that of the VFB case because transport of 2,7-AQDS toward the porous felt is limited by its relatively large radius, as discussed in the cyclic voltammetry results.…”
Section: Resultsmentioning
confidence: 91%
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“…The enhancement in the average energy efficiency rises from approximately 3.2% at 10 mA cm –2 to 16.1% at 50 mA cm –2 . The performance improvement in the anthraquinone/ferrocyanide FB with the rGO-modified felt is due to a combination of the presence of catalytic oxygenated groups at its surface, enhanced wettability, and probably extended surface area, as in the case of other modified electrodes . The improvement is modest compared to that of the VFB case because transport of 2,7-AQDS toward the porous felt is limited by its relatively large radius, as discussed in the cyclic voltammetry results.…”
Section: Resultsmentioning
confidence: 91%
“…Upon successive impregnation steps, the amount of rGO remains stable, as has been reported in Table , but the increased content of PEG in the subsequent impregnation could promote the formation of oxygenated species in the rGO sheets and the pristine felt matrix, which could explain how the I D / I G ratio increases with increasing number of deposition steps since a higher amount of oxygen implies a large number of defects (higher intensity of the D band). A greater number of defects in the carbonaceous matrix generated by the oxygenated groups incorporated during the annealing process in the presence of PEG implies a greater number of electrochemically active sites at the electrodes catalyzing the FB reactions. ,, …”
Section: Resultsmentioning
confidence: 99%
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