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.
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).
Can organic-based aqueous flow batteries be all-quinone?
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 molecules we also provide emerging quantitative structure-property relationships.
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.
Can Quinones be used for energy storage?
Due to the practically infinite chemical space of organic molecules, the discovery of additional quinones or other redox-active organic molecules for energy storage applications is an open field of inquiry.
Why are quinones important in bioelectrochemical energy-storage devices?
Because quinones play a key role in bioelectrochemical processes, a fundamental understanding of their reaction mechanisms in electrochemical energy-storage devices can pave the path toward bio-inspired sustainable energy technologies.
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UV-Vis spectrophotometry of quinone flow …
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 …
Get Price →Alkaline Quinone Flow Battery with Long Lifetime at pH 12
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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 …
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 …
Get Price →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 …
Get Price →(KMS): Breaking the ...
Herein, we demonstrate a carbon-modified amorphous silicon photoanode to drive a 1.08 V pHneutral TEMPO/quinone-based flow battery for direct photocharging, which delivers an average solar-to-redox conversion efficiency of 6.8 % under simulated solar
Get Price →Molecular Mechanism and Electrostatic Effect …
Symmetric all-quinone aqueous redox flow batteries (SQA-RFBs), in which the same quinone derivative is used as the electroactive compound in the negative and positive electrolytes, thereby obviating the need for a species …
Get Price →Breaking the photoelectrochemical activity-battery voltage …
Solar redox flow batteries (SRFBs) have shown a great promise for harvesting and storage of solar energy in simple and stand-alone way. The solar-to-redox conversion efficiency during photocharging is the bottleneck for the overall energy conversion efficiency of SRFBs, which is restricted by the photoelectrochemical activity-battery voltage trade-off.
Get Price →A Phosphonate‐Functionalized Quinone Redox …
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 …
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 →Cycling Analysis of a Quinone-Bromide Redox Flow Battery
A great deal of effort has been devoted to the quest for a high-performance cell utilizing alternative RFB chemistries composed entirely of inexpensive materials, 1–4 as well as hybrid flow/non-flow batteries. 5–7 One promising candidate is the aqueous quinone-bromide flow battery (QBFB), which pairs a novel quinone/hydroquinone couple on ...
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 →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 →Molecular engineering of dihydroxyanthraquinone-based
Kwabi, D. G. et al. Alkaline quinone flow battery with long lifetime at pH 12. Joule 2, 1894–1906 (2018). Article CAS Google Scholar Goulet, M.- A. et al. Extending the lifetime of organic flow ...
Get Price →High-Throughput Virtual Screening of Quinones for Aqueous Redox Flow ...
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 necessary performance in terms of metrics, such as specific capacity, power density, and long-term stability, to achieve mass market adoption. These performance metrics are directly …
Get Price →Alkaline Quinone Flow Battery with Long Lifetime at pH 12
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Get Price →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 ...
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 →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 …
Get Price →Exploring the Landscape of Heterocyclic Quinones for Redox Flow Batteries
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 lowest of any quinone and rivals the lowest ever reported for any flow battery in the absence of rebalancing processes.
Get Price →An Aqueous All‐Quinone‐Based Redox Flow Battery …
An Aqueous All-Quinone-Based Redox Flow Battery Employing Neutral Electrolyte. Gaojing Yang, Gaojing Yang. Frontiers Science Center for New Organic Matter, Haihe Laboratory of Sustainable Chemical Transformations, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), State Key Laboratory of Advanced Chemical …
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 →Computational design of molecules for an all-quinone redox flow battery ...
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 have been shown to reduce the cost of electrical energy storage by nearly an order of magnitude, 1 and continued improvements in cell voltage and ...
Get Price →A high capacity small molecule quinone cathode for ...
A water-miscible quinone flow battery with high volumetric capacity and energy density. ACS Energy Lett. 4, 1342–1348 (2019). Article CAS Google Scholar
Get Price →Alkaline Quinone Flow Battery with Long Lifetime at pH 12
We demonstrate a long-lifetime, aqueous redox-flow battery that can operate at a pH as low as 12 while maintaining an open-circuit voltage of over 1 V. We functionalized 2,6 …
Get Price →Alkaline quinone flow battery
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 molecules that are composed entirely of Earth-abundant elements and are nontoxic, nonflammable, and safe for use in residential ...
Get Price →Alkaline aqueous organic redox flow batteries of high energy …
A quinone-bromide flow battery with 1 W/cm2 power density. J. Electrochem. Soc., 163 (2016), pp. A5010-A5013. Crossref View in Scopus Google Scholar [39] Y. Ding, Y. Li, G. Yu. Exploring bio-inspired quinone-based organic redox flow batteries: a combined experimental and computational study.
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 →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 …
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 …
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