Ahn, Seongmo; Jang, Jin Hyeok; Kang, Jungtaek; Na, Moony; Seo, Jia; Singh, Vikram; Joo, Jung Min; Byon, Hye Ryung published the artcile< Systematic Designs of Dicationic Heteroarylpyridiniums as Negolytes for Nonaqueous Redox Flow Batteries>, COA of Formula: C3H7BrO, the main research area is systematic designs dicationic heteroarylpyridiniums negolytes nonaqueous redox flow battery.
Many organic redox materials are chem. unstable and sparingly soluble in nonaqueous media. Addnl., the crossover of redox materials and the availability of limited membranes have restricted the examination of the long-term cyclability of these materials in nonaqueous redox flow batteries (RFBs). To overcome these limitations, we developed a new class of pyridinium-based negolytes. The π-conjugation structure of the pyridinium mols. was extended by introducing benzothiazole into the C4-position of pyridinium, which improved the stability of these mols. Cationic ammonium functional groups at the N-substituent suppressed the crossover of the pyridinium negolytes through an anion exchange membrane. Furthermore, the solubility of the negolyte was increased up to ~1 M in acetonitrile and 0.3-0.5 M with tetrabutylammonium bis(trifluoromethanesulfonyl)imide (TBATFSI) and acetonitrile. A 0.1 M solution of the dicationic benzothiazolylpyridinium exhibited 0.0083% capacity-fading rate per cycle in sym. RFBs for 250 cycles and 0.08% in full RFBs comprising the ammonium-substituted ferrocene as a posolyte for 500 cycles.
ACS Energy Letters published new progress about Anion exchange membranes. 6482-24-2 belongs to class ethers-buliding-blocks, and the molecular formula is C3H7BrO, COA of Formula: C3H7BrO.
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem