Journal
CHEMSUSCHEM
Volume 11, Issue 11, Pages 1866-1872Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201800303
Keywords
ferroin; neutral red; redox flow battery; redox indicator; redox pair
Funding
- Sangmyung University
Ask authors/readers for more resources
Neutral red and ferroin are used as redox indicators (RINs) in potentiometric titrations. The rapid response and reversibility that are prerequisites for RINs are also desirable properties for the active materials in redox flow batteries (RFBs). This study describes the electrochemical properties of ferroin and neutral red as a redox pair. The rapid reaction rates of the RINs allow a cell to run at a rate of 4 C with 89% capacity retention after the 100th cycle. The diffusion coefficients, electrode reaction rates, and solubilities of the RINs were determined. The electron-transfer rate constants of ferroin and neutral red are 0.11 and 0.027 cm s(-1), respectively, which are greater than those of the components of all-vanadium and Zn/Br-2 cells.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available