Fullerene C₇₆ as a novel electrocatalyst for VO²⁺/VO₂⁺ and chlorine evolution inhibitor in all-vanadium redox flow batteries

Abstract

<p>We report, for the first time, the superior electrocatalytic activity of fullerene C₇₆ towards VO²⁺/VO₂⁺ in all-vanadium redox flow batteries.</p>

Molybdenum-assisted reduction of VO2+ for low cost electrolytes of vanadium redox flow batteries

“…From Fig. 3c and d, an increase in ΔEp with increasing scan rate can be found, which is consistent with many studies showing that the redox reaction of vanadium ions on the electrode is a quasi-reversible reaction [51][52][53] . As the scan rate increases, ΔEp increases because a larger overpotential is required due to the enhanced polarization effect, which suggests that the reaction kinetics come into competition with mass transfer.…”

Oxygen Vacancy‐Engineered Ti−Mo−Ni Ternary Oxide Nanotubes as Binder‐Free Supercapacitor Electrodes with Exceptional Potential Window

“…However, their practical use is still hindered by their low energy density compared to batteries. [9][10][11][12] Therefore, a lot of efforts have been directed toward the design and fabrication of supercapacitor electrode materials that can deliver high energy density while being cheap and durable. In this regard, materials that exhibit pseudocapacitive and battery-like behavior are the central focus nowadays.…”

“…Consequently, they are of great potential for use in electronics, vehicles, and industrial units due to their excellent power density, fast charging, low cost, easy manufacturing, and long life cycle. However, their practical use is still hindered by their low energy density compared to batteries . Therefore, a lot of efforts have been directed toward the design and fabrication of supercapacitor electrode materials that can deliver high energy density while being cheap and durable.…”

Tungsten oxide/fullerene-based nanocomposites as electrocatalysts and parasitic reactions inhibitors for VO2+/VO2+ in mixed-acids

“…Many carbon materials have been used, such as carbon paper 9 , carbon nanotubes 10 – 13 , graphene-based nanostructures 14 – 17 , carbon nanofibers 18 , and other 19 – 23 , except the fullerene family. In our previous work on C 76 , we reported for the first time, the superior electrocatalytic activity of this fullerene towards VO 2+ /VO 2 + , showing a 99.5% and 97% decrease in charge transfer resistance in comparison to thermally treated and untreated carbon cloth 24 . A summary of the carbon materials' catalytic performance towards the VO 2+ /VO 2 + reactions in comparison to C 76 is given in Table S1 .…”