Fig. 1: Aqueous Fe redox flow battery in this work.
From: Phosphonate-based iron complex for a cost-effective and long cycling aqueous iron redox flow battery
a Redox potentials of representative Fe complexes vs. SHE, along with hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) potentials at acidic conditions with the consideration of the overpotentials on carbon electrode, are briefly compared. b Molecular structure of NTMPA, nitrogenous triphosphonate, nitrilotri(methylphosphonic acid). c Schematic view of Fe-RFB consisting of Fe-NTMPA2 anolyte and Fe-CN catholyte.
