| 초록 |
In this study, redox materials using low-cost transition metals and ligands were synthesized to replace vanadium and the optimization and performance evaluation were conducted to apply these materials for redox flow battery. The triethanolamine (TEA), triisopropanolamine (TiPA), and 3-[Bis(2-hydroxyethyl)amino]-2-hydroxypropanesulfonic acid (DIPSO) are used as ligands, which are amino alcohol-based ligands, have the characteristic of strongly bonding with transition metals in a basic environment. Furthermore, since redox reactivity is exhibited in the range of -1.1 to –1.03 V (vs. Ag/AgCl) and -0.14 to –0.07 V (vs. Ag/AgCl) in the aqueous system when bonded with iron (Fe) and cobalt (Co), respectively, it could be used as an active material for the anode and a cathode active material of a redox flow battery having an open-circuit voltage (OCV) of about 0.95 V. |
