Shifting redox potential of nitroxyl radical by introducing an imidazolium substituent and its use in aqueous flow batteries
- Shifting redox potential of nitroxyl radical by introducing an imidazolium substituent and its use in aqueous flow batteries
- 헨켄스마이어디억; Zhenjun Chang; Ruiyong Chen
- Redox flow battery; Energy storage; 4-hydroxy-TEMPO; Redox-active organic molecule; Imidazolium grafting
- Issue Date
- Journal of power sources
- VOL 418-16
- Imidazolium-grafted nitroxyl radical is synthesized through a simple two-step reaction route, and studied as redox-active catholyte for redox flow batteries. A discharge cell voltage of 1.64  V against a Zn2+/Zn anodic couple in aqueous electrolyte has been achieved. Compared to the commercial 4-OH-TEMPO and previous work, the excellent chemical and electrochemical stability of the newly synthesized compound has been confirmed from the enhanced and steady Coulombic efficiency over charge/discharge cycling. Moreover, stable cycling efficiencies and good capacity retention over long-term cycling have been observed.
- Appears in Collections:
- KIST Publication > Article
- Files in This Item:
There are no files associated with this item.
- RIS (EndNote)
- XLS (Excel)
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.