Do quinones have redox properties for organic flow batteries?
Here, we report a systematic study on the electrochemical characteristics of quinones for organic flow batteries with a combined experimental and computational method. The redox properties of quinones were found to be strongly dependent on the molecular aromaticity and their electronic structures.
Can quinone-based flow batteries be adapted to alkaline solutions?
Dotted line represents CV of 1 M KOH background scanned at 100 mV/s on graphite foil electrode. We demonstrate that quinone-based flow batteries can be adapted to alkaline solutions, where hydroxylated anthraquinones are highly soluble and bromine can be replaced with the nontoxic ferricyanide ion (8, 9)—a food additive (10).
What is a 2 6 dbeaq flow battery?
By pairing 2,6-DBEAQ with a potassium ferri-/ferrocyanide positive electrolyte and utilizing a non-fluorinated membrane, this near-neutral flow battery shows a capacity fade rate that is the lowest of any quinone and rivals the lowest ever reported for any flow battery in the absence of rebalancing processes.
How does a redox flow battery work?
Ideally, the redox flow battery utilizes quinones on both sides of the battery as shown in Figure 1. The RFB utilizes an oxidized version of one quinone and the reduced version of a different quinone (hydroquinone) for the two electrolytes and charging/discharging ideally involves converting between these two forms.
Which aqueous redox flow battery has high capacity and power?
An Aqueous Redox-Flow Battery with High Capacity and Power: The TEMPTMA/MV System. Angew. Chem., Int. Ed. 2016, 55 (46), 14427 14430. L.; Wang, L.; Li, G.; Liu, J.; Jin, Z. High-performance Alkaline Organic Redox Flow Batteries Based on 2-hydroxy-3-carboxy-1,4-naphthoquinone. ACS Energy Lett. 2018, 3, 2404.
Can Quinones be dissolved in alkaline solutions?
Lin et al. show that quinones can be dissolved in alkaline solutions and coupled with ferricyanides to make a flow cell battery (see the Perspective by Perry). This gives scope for developing flow cells with very low costs, high efficiencies at practical power densities, simplicity of operation, and inherent safety.
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High-Performance Aqueous Organic Flow Battery with Quinone …
High-Performance Aqueous Organic Flow Battery with Quinone-Based Redox Couples at Both Electrodes, Bo Yang, Lena Hoober-Burkhardt, Sankarganesh Krishnamoorthy, Advaith Murali, G. K. Surya Prakash, S. R. Narayanan
Get Price →Quinones for Aqueous Organic Redox Flow …
This review article delves into the fascinating world of quinone-based redox flow battery design and discovery. By analyzing existing experimental, molecular, and electrochemical analysis methods, this article …
Get Price →High-Performance Aqueous Organic Flow …
We have demonstrated the repeated cycling of a redox flow cell based on water-soluble organic redox couples (ORBAT) at high voltage efficiency, coulombic efficiency and power density.
Get Price →Porous Membrane with High Selectivity for Alkaline Quinone-Based Flow ...
Aqueous organic-based flow batteries are increasingly receiving attention owing to their appealing traits of high safety and low cost. An economic and high-performance membrane is always regarded as the heart of the batteries. Here, we introduce a cost-effective, homemade porous membrane with high performance for alkaline quinone-based flow batteries. The …
Get Price →A Water-Miscible Quinone Flow Battery with High …
We synthesized and screened a series of PEG-substituted anthraquinones (PEGAQs) and carefully studied one of its isomers, namely, 1,8-bis(2-(2-(2 …
Get Price →Exploring Bio-inspired Quinone-Based Organic Redox Flow Batteries…
Here, we report a systematic study on the electrochemical characteristics of quinones for organic flow batteries with a combined experimental and computational method. …
Get Price →A Water-Miscible Quinone Flow Battery with …
We synthesized and screened a series of PEG-substituted anthraquinones (PEGAQs) and carefully studied one of its isomers, namely, …
Get Price →An Aqueous All‐Quinone‐Based Redox Flow Battery …
Considering the corrosiveness of acidic and alkaline electrolytes and sustainability of energy storage devices, neutral aqueous organic redox flow batteries (AORFBs) have more …
Get Price →Alkaline quinone flow battery,Science
Alkaline quinone flow battery Science ( IF 44.7) Pub Date : 2015-09-24, DOI: 10.1126/science.aab3033 Kaixiang Lin, Qing Chen 2 2 1 1 3 3 ...
Get Price →A Phosphonate‐Functionalized Quinone Redox Flow Battery …
By pairing 2,6-DPPEAQ with a potassium ferri/ferrocyanide positive electrolyte across an inexpensive, nonfluorinated permselective polymer membrane, this near-neutral quinone flow battery exhibits an open-circuit voltage of 1.0 V and a capacity fade rate of 0.00036% per cycle and 0.014% per day, which is the lowest ever reported for any flow ...
Get Price →Next-generation aqueous flow battery chemistries
Quinone-/hydroquinone-based redox couples have been widely studied for use in flow battery systems. Anthraquinone derivatives form a class of promising negative side materials. Anthraquinone disulfonic acid (AQDS) and anthraquinone monosulfonic acid are stable in acidic media and have been widely used in flow battery research [14, 15, 16, 27 ...
Get Price →Alkaline Quinone Flow Battery with Long Lifetime at pH 12
By pairing 2,6-DBEAQ with a potassium ferri-/ferrocyanide positive electrolyte and utilizing a non-fluorinated membrane, this near-neutral flow battery shows a capacity fade rate that is the lowest of any quinone and rivals the lowest ever reported for any flow battery in the absence of rebalancing processes.
Get Price →Membraneless Micro Redox Flow Battery: From …
To overcome some drawbacks encountered with Vanadium, an alkaline quinone electrolyte is used instead in the membraneless micro redox flow battery. Using this new electrolyte, sixty continuous cycles are performed …
Get Price →Size and Charge Effects on Crossover of Flow …
Decarbonization of energy systems is necessary for a sustainable future, and this transformation motivates growth of electrochemical energy storage such as redox flow batteries. 1,2 Water-soluble, redox-active organic …
Get Price →Alkaline Quinone Flow Battery with Long …
This work demonstrates a new, organic redox-flow battery (RFB) that outlives its predecessors, offering the longest-lived high-performance organic flow battery to date. It appears to be the first aqueous-soluble organic RFB …
Get Price →Technology
Quinones are redox-active molecules that can be easily converted between a reduced hydroquinone form and an oxidized quinone form. Quinones are found in a large number of familiar materials, like Vitamin K 1, henna, and a large variety of dyes.Some quinones have high water solubility and high chemical stability, which make them ideal for use as flow battery …
Get Price →Alkaline quinone flow battery | Science
Lin et al. show that quinones can be dissolved in alkaline solutions and coupled with ferricyanides to make a flow cell battery (see the Perspective …
Get Price →A Quinone-Bromide Flow Battery with 1 W/cm 2 Power Density
Redox flow batteries (RFBs) are promising candidates for the integration of intermittent renewable power sources with the power grid due to their potential for high safety and long discharge duration at low cost. 1–5 The most technologically mature system – the vanadium RFB – has now reached a peak power density of 1.34 W/cm 2, 6 but the high price of …
Get Price →Alkaline Quinone Flow Battery with Long Lifetime at pH 12
By pairing 2,6-DBEAQ with a potassium ferri-/ferrocyanide positive electrolyte and utilizing a non-fluorinated membrane, this near-neutral flow battery shows a capacity fade rate …
Get Price →Interionic hydrogen bonds induced high solubility of quinone ...
Yang [26] proposed an all-quinone redox flow battery with anthraquinone-2-sulfonic acid (AQS) or anthraquinone-2,6-disulfonic acid (AQDS) as the negative electrolyte, 1,2-dihydroxybenzoquinone-3,5-disulfonic acid (BQDS) as the positive electrolyte and 1 M H 2 SO 4 as supporting electrolyte. The results indicated that AQDS showed higher water ...
Get Price →UV-Vis spectrophotometry of quinone flow battery …
Quinone-based flow batteries have attracted a great deal of attention for their potential to regulate fluctuations in energy demand and the address the intermittency challenge of renewable wind and photo-voltaic supply through cost-effective grid-scale storage. 6,10,11 To further improve quinone-based flow battery performance,
Get Price →A nonaqueous organic redox flow battery using multi-electron quinone ...
Organic redox flow batteries are promising energy storage devices due to their moderately low-cost and scalability. This paper introduces a new multi-electron redox active material, tetra-amino anthraquinone (DB-1) that is capable of forming cations with an oxidation state of 4+, yielding one of the highest electrode potentials (up to 4.4 V vs.Li) and the largest …
Get Price →Organic Redox Species in Aqueous Flow Batteries: Redox
Yang, B. et al. High-Performance Aqueous Organic Flow Battery with Quinone-Based Redox Couples at Both Electrodes. Journal of The Electrochemical Society 163 (2016). Article CAS Google Scholar
Get Price →UV-Vis spectrophotometry of quinone flow battery …
Quinone-based aqueous flow batteries provide a potential opportunity for large-scale, low-cost energy storage due to their composition from earth abundant elements, high aqueous solubility, reversible redox kinetics and their chemical tunability such as reduction potential. In an operating flow battery utilizing 9,10-anthraquinone-2,7 ...
Get Price →Mapping the frontiers of quinone stability in …
Mapping the frontiers of quinone stability in aqueous media: implications for organic aqueous redox flow batteries†. Daniel P. Tabor‡ a, Rafael Gómez-Bombarelli‡ § a, Liuchuan Tong a, Roy G. Gordon ab, Michael J. Aziz b and …
Get Price →Quinones for redox flow batteries
Quinones are electroactive species that have shown great promise for redox flow batteries due to the ability to tune their properties and to act as both negative and positive …
Get Price →Quinone voltammetry for redox-flow battery applications
Quinone electrochemistry is widely discussed in the literature [39] well-buffered aqueous media, quinone/hydroquinone couples undergo reversible two-electron (e −) redox process with potentials (E) that vary with pH in a Nernstian manner [40] non-aqueous media, quinones undergo two single e − reduction steps, to form first the radical anion (Q.−), and then …
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