A stable organic dye catholyte for long-life aqueous flow batteries

Abstract

An organic dye Basic blue 3 (BB3) was firstly reported as a two-electron catholyte for aqueous redox flow battery. The exceptional stability of BB3 enabled the full battery to achieve...

Design strategies and applications of novel functionalized phenazine derivatives: a review

“…A water splitting battery based on the PEC technology has the potential to alleviate both energy and environmental issues. 185–190 Nonetheless, previous reports on 2D conjugated polymers were unsuitable for PEC application owing to their ineffective light harvesting and wide optical energy gap. 191–194 In view of this, Feng and co-workers 195 described a variety of novel sp 2 -carbon-linked 2D conjugated polymers 78–80 with excellent optoelectronic performance.…”

Synthetic strategies of phenazine derivatives: A review

“…In 2014, Tandon and co-workers [79] reported an efficient and concise one-pot regio-and chemo-selective synthesis of benzo[a]phenazine and derivatives (11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24). As shown in Scheme 3, this method was employed for 2, 3-dichloro-1, 4-naphoquinone to nucleophile with ophenylenediamine and benzamidine under the condition of H 2 O in the presence of alkali and micelles (SDS) as catalysts, achieving the expected products in excellent yields.…”

“…Phenazine is an important class of nitrogen-containing heterocycles endowing particular backbone structure with electron-deficient π system and lone pair electrons on N atoms [1][2][3][4][5][6][7]. It has been widely explored in the fields of medicine, pesticides, dyes, and conductive materials [5,[8][9][10][11][12][13][14]. Since then, a plenteous of phenazine derivatives have been synthesized and identified due to their attractive performance [15][16][17][18][19].…”

Isopropyl alcohol and copper hexacyanoferrate boost performance of the iron tris‐bipyridine catholyte for near‐neutral pH aqueous redox flow batteries

“…Several recent articles review the ever-broadening array of inorganic, organic, and organometallic active species under study for ARFBs. 1,2 Much research has focused on novel anolyte [3][4][5][6] or catholyte 7,8 development. Despite this progress, the community regularly notes the lack of suitable high-redox-potential catholytes, 9 with TEMPO, ferrocyanide, and ferrocene derivatives the most studied options that are functional at moderate pH.…”