Benzoquinone flow battery

Is benzoquinone an organic anolyte of aqueous redox flow batteries?

A benzoquinone derivative annelated by two imidazole rings was investigated as an organic anolyte of aqueous redox flow batteries. The anolyte showed a high solubility of 0.18 M in 1 M KOH aqueous solution and exhibited a one-step two-electron reversible redox wave with a half-wave potential of −0.59 V VS. SHE.

Can Quinones be used in aqueous organic redox flow batteries?

In recent years, there has been considerable interest in the potential of quinones as a promising category of electroactive species for use in aqueous organic redox flow batteries.

What is a aqueous flow battery?

An aqueous flow battery based on low-cost, nonflammable, noncorrosive, and earth-abundant elements is introduced. During charging, electrons are stored in a concentrated water solution of 2,5-dihydroxy-1,4-benzoquinone, which rapidly receives electrons with inexpensive carbon electrodes without the assistance of any metal electrocatalyst.

Can tetraamino-p-benzoquinone cathode be used in rechargeable batteries?

The flexible structural design of organic materials make them promising candidates for cathode in rechargeable batteries. Here, the authors report a tetraamino-p-benzoquinone cathode which realizes facile proton conduction by the Grotthuss-type mechanism and shows excellent electrochemical performance.

Is imidazole a positive electrolyte material for aqueous organic redox flow batteries?

Imidazole was added deliberately as an internal standard for estimating concentration. Electrolyte solutions were diluted with deuterated-water (D 2 O). We were able to synthesize, characterize and demonstrate the properties of a new positive electrolyte material, DHDMBS, for aqueous organic redox flow batteries.

Why is TABQ used for aqueous zinc-organic batteries?

It guarantees the excellent electrochemical performance of the Zn-TABQ battery. In this work, specific functional groups are chosen for the small molecule quinone cathode of TABQ for aqueous zinc-organic batteries. The hydrogen bonds suppress the sublimation and provides convenience for various electrode treatments.