A Phosphonate‐Functionalized Quinone Redox Flow

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

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Alkaline Quinone Flow Battery with Long

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

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Organic Redox Species in Aqueous Flow Batteries: Redox

Lin, K. et al. Alkaline quinone flow battery. Science Magazine 349, 1529–1532 (2015). CAS ADS Google Scholar

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Computational design of molecules for an all

We identified the promising candidates for both the negative and positive sides of organic-based aqueous flow batteries, thus enabling an all-quinone battery. To further aid the development of additional interesting electroactive small

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Alkaline quinone flow battery,Science

A solution for scalable-flow batteries Flow batteries, in which the redox active components are held in tanks separate from the active part of the cell, offer a scalable route for storing large quantities of energy. Alkaline quinone flow battery Science ( IF 44.7) Pub Date : 2015-09-24, DOI: 10.1126/science.aab3033 Kaixiang Lin

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A Water-Miscible Quinone Flow Battery with High

A water-miscible anthraquinone with polyethylene glycol (PEG)-based solubilizing groups is introduced as the redox-active molecule in a

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Exploring Bio-inspired Quinone-Based Organic Redox Flow

Highlights • Electronic structures and electrochemical characteristics of quinones are studied • An integrated approach with electrochemical analyses and theoretical

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Membraneless Micro Redox Flow Battery: From Vanadium to Alkaline Quinone

For the membraneless Alkaline Quinone micro redox flow battery sixty continuous cycles were performed, with an initial capacity of 1.14 Ah/L, and a coulombic efficiency of 57.85 % for the first cycle. Successive cycles present a gradual decrease in capacity around 1.2 % while coulombic efficiency only decreases 0.63 % per cycle. The capacity of

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A Water-Miscible Quinone Flow Battery with High

A water-miscible anthraquinone with polyethylene glycol (PEG)-based solubilizing groups is introduced as the redox-active molecule in a negative electrolyte (negolyte) for aqueous redox flow batteries, exhibiting the highest

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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

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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.

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Demonstrating the Use of a Fungal

Biobased: The filamentous fungus can be used as an environmentally and sustainable benign source to produce the bio-based quinone phoenicin.This natural

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Quino Energy''s unique water-based flow battery

Quino Energy, a company developing water-based organic flow batteries, has achieved manufacturing readiness level (MRL) 7 for its battery active material pilot production line.This designation confirms that the line is

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Alkaline quinone flow battery

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

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Membraneless Micro Redox Flow Battery: From

The performances obtained outshine previous literature results. The highest energy efficiency ever obtained for a membraneless micro redox flow battery is presented here with alkaline quinone having an efficiency of 28.9 %.

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A metal-free organic–inorganic aqueous

Solutions of AQDS in sulphuric acid (negative side) and Br 2 in HBr (positive side) were pumped through a flow cell as shown schematically in Fig. 1a.The quinone–bromide

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Quinone looks to challenge flow battery incumbents but project

A team at Harvard is pursuing a metal-free battery chemistry based on organic molecules called Quinones. The technology potentially offers an abundant and safe material to use for scaling up flow batteries, but according to the energy storage team at Lux Research in Boston, there are significant limitations based on project cost.

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Texas Scores Another Clean Tech Point, Flow Battery Edition

The announcement follows a Level 6 stage that involved using the quinone-based battery active material in a flow battery that was originally manufactured to accommodate vanadium, indicating that

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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

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Exploring the Landscape of Heterocyclic Quinones for Redox Flow

By pairing 2,6-DBEAQ with a potassium ferri-/ferrocyanide pos. electrolyte and utilizing a non-fluorinated membrane, this near-neutral flow battery shows a capacity fade rate that is the

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Degradation of Quinone‐based Flow

BQDS was first shown to have the potential to be used as a posolyte in an all-organic aqueous flow battery. 10 However, it was later shown that BQDS undergoes Michael

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Exploring Bio-inspired Quinone-Based Organic Redox Flow

A detailed device assembly process is described in the Experimental Procedures section, and the schematic illustration and images of the static and flow-mode battery are presented in Figure S1. 34 Galvanostatic charge-discharge tests were initially conducted to characterize the electrochemical properties of different kinds of quinone solutions. Catholyte

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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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Computational design of molecules for

Here, we use a virtual screening approach 10–16 coupled with materials genomic concepts 17–19 to allow for the rational design of an all-quinone flow battery. Quinone–bromide flow batteries

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High-Throughput Virtual Screening of

Quinones are one of the most promising and widely investigated classes of redox active materials for organic aqueous redox flow batteries. However, quinone-based flow batteries still lack the

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Membraneless Micro Redox Flow Battery: From Vanadium to Alkaline Quinone

micro redox flow battery is presented here with alkaline quinone having an efficiency of 28.9 %. The cycling of a membraneless micro redox flow battery is successfully per-formed for the first time. This work also includes performance improvement suggestions for future work, with this landmark opening a promising path towards achieving the

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A Quinone-Bromide Flow Battery with 1 W/cm 2 Power Density

We report the performance of a quinone-bromide redox flow battery and its dependence on electrolyte composition, flow rate, operating temperature, electrode and membrane materials and pre-treatment. The results of this study are used to develop a cell with a peak galvanic power density reaching 1.0 W/cm 2 .

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Quinones for redox flow batteries

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.

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Alkaline quinone flow battery | Science

Flow batteries permit more economical long-duration discharge than solid-electrode batteries by using liquid electrolytes stored outside of the battery. We report an alkaline flow battery based on redox-active organic

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Computational design of molecules for an all-quinone redox flow battery

existing quinone and hydroquinone derivatives and to investi-gate their quantitative structure–property relationships (QSPRs). Here, we use a virtual screening approach10–16 coupled with materials genomic concepts17–19 to allow for the rational design of an all-quinone ow battery. Quinone–bromide ow batteries have been shown to reduce

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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 solubility,

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Computational design of quinone

Through the analysis of the calculation results, we discussed the influence of the quinone backbone, the position of the substituent, and the type of the substituent on the

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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

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An Aqueous All‐Quinone‐Based Redox Flow Battery Employing

Abstract Redox flow batteries (RFBs) are considered as promising candidates for large-scale energy storage. An Aqueous All-Quinone-Based Redox Flow Battery Employing Neutral Electrolyte. Gaojing Yang, Gaojing Yang. Therefore, an all-quinone AORFB employing neutral Na 2 SO 4 electrolytes with a cell voltage of 0.9 V is constructed,

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6 FAQs about [Flow battery quinone]

Can Quinones be used in organic flow batteries?

Such a systematic study provides a generic design guide for organic flow batteries by integrating rational molecular screening, fundamental electrochemical analysis, and advanced computational modeling. The bio-inspired feature of quinones promises a next-generation energy technology with a low carbon footprint and green battery life cycle.

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).

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.

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.

What are flow batteries?

Sang Bok Kim Louise Eisenach Alvaro W. Valle David Hardee Roy G. Gordon Michael J. Aziz, and Michael P. Marshak +8 authors +6 authors +1 authors Authors Info & Affiliations Flow batteries, in which the redox active components are held in tanks separate from the active part of the cell, offer a scalable route for storing large quantities of energy.

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