Investigation of Graphite-Based Electrodes for Vanadium Flow Cell
- by Alessandra Di Blasi of NR-Istituto di Tecnologie Avanzate per l’Energia “Nicola Giordano
”Several graphite-based electrodes are investigated for vanadium flow battery applications. These materials are characterized both as-received and after chemical or electrochemical treatments.
The chemical treatment causes a cleaning of the electrode surface from adsorbed oxygen species or labile bonded functional groups in highly graphitic samples. Whereas, carbonaceous materials characterized by smaller graphitic domains or a higher degree of amorphous carbon
show an increase of oxygen functional groups upon chemical and electrochemical pre-treatments.
An increase of oxygen species content on the surface above 5% causes a decrease of electrochemical performance determined by an increase of ohmic and charge transfer resistance.
This presentation will be given by Alessandra Di Blasi of NR-Istituto di Tecnologie Avanzate per l’Energia “Nicola Giordano” at Next Generation Batteries 2013. If interesting, please go to Event.
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