A low-redox-potential phenazine-based negolyte with high stability for aqueous organic flow batteries.

ABSTRACT: Phenazine-based negolytes for aqueous organic redox flow batteries (AOFBs) have attracted significant attention due to their structural tunability and highly reversible redox behaviour. However, phenazine derivatives often suffer from adverse tautomerization and side-chain cleavage and their stability would become inferior as redox potential decreases. Consequently, developing stable phenazine derivatives with low redox potential (especially ≤-0.8 V vs. SHE) remains a major challenge, yet it is essential for achieving high-voltage AORFBs. Herein, we report a new phenazine derivative, 4,4'-((7,8-dimethoxyphenazine-2,3-diyl)bis(oxy))dibutyric acid (dMeODBAP), which exhibits a favourable redox potential of -0.84 V (vs. SHE) along with exceptional stability, as validated by both

SUBMITTER: Xie X 

PROVIDER: S-EPMC12560832 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature