PDF Publication Title:
Text from PDF Page: 137
9 Conclusions and Recommendations As with the Fe(CN) 3− / Fe(CN) 4− redox couple, the increase in kinetics was not directly 66 related to increased capacitance. The change in physical area of the felts at a selected treatment temperature was also recorded with BET measurements. It was found that the increase in capacitance was broadly related to the increased physical area of the electrodes, however there was also a change in the specific capacitance. The specific capacitance for carbon surfaces is known to be related to the ratio of basal to edge plane sites. In this work the recorded specific capacitances of the different thermally treated felts were within the expected range for carbon materials. Raman spectroscopy analysis supported the changes in specific capacitance, with the least ordered felt showing the highest change in capacitance, as would be expected. Half-cell measurements of the VO2+ / VO2+ redox couple were recorded using polarization curve and charge / discharge curve analysis. The apparent rate constants calculated from the overpotential during polarization curve measurements were in close agreement with those calculated from the simulation of cyclic voltammetry. This supports the accuracy of using cyclic voltammetry to identify the kinetic performance of carbon felts, provided the void distribution is accounted for. Charge / discharge measurements confirmed that felts with higher apparent rate constants had higher performance, with improved energy efficiency. 125PDF Image | Electron Transfer Kinetics in Redox Flow Batteries
PDF Search Title:
Electron Transfer Kinetics in Redox Flow BatteriesOriginal File Name Searched:
electron-transfer-flow-batteries-thesis.pdfDIY PDF Search: Google It | Yahoo | Bing
Salgenx Redox Flow Battery Technology: Salt water flow battery technology with low cost and great energy density that can be used for power storage and thermal storage. Let us de-risk your production using our license. Our aqueous flow battery is less cost than Tesla Megapack and available faster. Redox flow battery. No membrane needed like with Vanadium, or Bromine. Salgenx flow battery
| CONTACT TEL: 608-238-6001 Email: greg@salgenx.com | RSS | AMP |