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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 …
A high capacity small molecule quinone cathode for ...
It guarantees activation energies below 300 meV for charge transfer and proton diffusion. The TABQ cathode delivers a high capacity of 303 mAh g −1 at 0.1 A g …
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.
Porous Membrane with High Selectivity for Alkaline Quinone-Based Flow Batteries.
DOI: 10.1021/acsami.0c13172 Corpus ID: 222839729 Porous Membrane with High Selectivity for Alkaline Quinone-Based Flow Batteries. @article{Chen2020PorousMW, title={Porous Membrane with High Selectivity for Alkaline Quinone-Based Flow Batteries.}, author={Dongju Chen and Weiqi Duan and Yingying …
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.
A Quinone-Bromide Flow Battery with 1 W/cm 2 Power Density
The cell design (Fig. 1) is based on that in Ref. 7.On each side, a commercial graphite plate with interdigitated flow channels 10 (Fuel Cell Tech, Albuquerque, NM) was used to feed electrolyte to a porous carbon paper electrode at a rate controlled by a MasterFlex (Cole Parmer) diaphragm pump. The temperature of the cell was controlled …
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, …
Exploring Bio-inspired Quinone-Based Organic Redox Flow …
The performance of a flow-mode battery was also demonstrated. Figure 5D shows the polarization curves of the flow battery at a flow rate of 4 mL min −1, in which power density of 5.1 mW cm −2 can be achieved at current density of 4.7 mA cm −2 for NQ. Similarly, the power density can reach 5.7 mW cm −2 for a PQ-based flow-mode battery ...
Porous Membrane with High Selectivity for Alkaline Quinone-Based Flow Batteries …
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 p …
Quinone and hydroquinone based flow battery | Liuchuan Tong
Huskinson B, Marshak M, Aziz MJ, Gordon RG, Aspuru-Guzik A, Er S, Suh C, Tong L, Lin K.; 2016. Quinone and hydroquinone based flow battery. United States of America patent WO 2015/048550 A1.
A dibutylhydroquinone/dibutylbenzoquinone-Cd2+/Cd self-stratified Battery …
Comparison of quinone-based catholytes for aqueous redox flow batteries and demonstration of long-term stability with tetrasubstituted quinones Adv. Energy Mater., 10 ( 2020 ), Article 2000340, 10.1002/aenm.202000340
Novel Quinone-Based Couples for Flow Batteries
Flow batteries are of interest for low-cost grid-scale electrical energy storage in the face of rising electricity production from intermittent renewables like wind and solar. We report on investigations of redox couples based on the reversible protonation of small organic molecules called quinones. These molecules can be very inexpensive and …
Article Exploring Bio-inspired Quinone-Based Organic Redox Flow Batteries: A Combined Experimental and Computational Study …
Such stable cycling performance together with nearly 100% CE has not been achieved before in regard to quinone-based redox flow batteries. The NQ battery also shows good cycling stability at a concentration of 0.2 M (Figures S9 and S10). Even when the little ...
Demonstrating the Use of a Fungal Synthesized Quinone in a Redox Flow ...
Biobased: The filamentous fungus can be used as an environmentally and sustainable benign source to produce the bio-based quinone phoenicin.This natural compound shows electrochemical properties, which can be used as the active material in the negative electrolyte in a redox flow battery with results showing that biologically …
UV-Vis spectrophotometry of quinone flow battery electrolyte …
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,
Exploring Bio-inspired Quinone-Based Organic Redox Flow Batteries: A Combined Experimental and Computational Study …
complexes. This research aims to elucidate the reaction mechanisms of quinone-based electrode materials with multi-electron reactions for the application of non-aqueous redox flow batteries. Figure 1. Design of Organic Redox Flow Batteries and Quinone
Quinone voltammetry for redox-flow battery applications
High-performance aqueous organic flow battery with quinone-based redox couples at both electrodes. J. Electrochem. Soc., 163 (2016), pp. A1442-A1449, 10.1149/2.1371607jes. ... UV-Vis spectrophotometry of quinone flow battery electrolyte for: In situ monitoring and improved electrochemical modeling of potential and quinhydrone …
Exploring Bio-inspired Quinone-Based Organic Redox Flow …
In contrast to recently reported quinone-based energy-storage systems, the Li-based non-aqueous flow battery combines the advantages of Li-ion batteries and …
High-Performance Aqueous Organic Flow Battery with Quinone-Based …
Redox couples based on the aqueous electrochemistry of quinones undergo fast proton-coupled electron transfer and also provide a large charge capacity. We have measured the heterogeneous rate constants for the charge-transfer processes to be in the range of 10 −3 to 10 −4 cm s −1. 5 The specific capacity for these molecules can …
A nonaqueous organic redox flow battery using multi-electron quinone molecules …
Exploring bio-inspired quinone-based organic redox flow Batteries : a combined experimental and computational study CHEMPR, 1 ( 2016 ), pp. 790 - 801, 10.1016/j empr.2016.09.004 View PDF View article View in Scopus Google Scholar
Organic Redox Species in Aqueous Flow Batteries: Redox
In this paper 33, mainly quinone-based, compounds are studied experimentially in terms of pH dependent redox potential, solubility and stability, combined with single cell battery RFB tests on ...
110th Anniversary : Unleashing the Full Potential of Quinones for High Performance Aqueous Organic Flow Battery
Aqueous organic flow batteries (AOFBs) are promising energy storage solutions to counteract the intermittent and fluctuating nature of renewable energy. However, we have limited options of electrolyte chemistry and we discarded many organic compounds because of their sluggish electrochemical kinetics, which would compromise the power capability …
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-dihydroxyanthraquinone (2,6-DHAQ) with highly alkali-soluble carboxylate terminal groups.
Quinones for Aqueous Organic Redox Flow Battery: A …
Aqueous organic redox flow batteries (AORFBs) use various quinone-based organic redox species as electroactive materials. These species exhibit different …
Symmetric All-Quinone Aqueous Battery | ACS Applied Energy …
Here we report a symmetric all-quinone aqueous battery based entirely on earth-abundant elements that uses a naturally occurring dye as the redox-active material in both positive and negative electrodes. We demonstrated a symmetric all-quinone cell with 1.04 V of open circuit voltage, 163 mAh/g of capacity, and 100 cycles at 10C with 100% of depth of …
An Aqueous All‐Quinone‐Based Redox Flow Battery Employing …
DOI: 10.1002/aenm.202400022 Corpus ID: 269433657; An Aqueous All‐Quinone‐Based Redox Flow Battery Employing Neutral Electrolyte @article{Yang2024AnAA, title={An Aqueous All‐Quinone‐Based Redox Flow Battery Employing Neutral Electrolyte}, author={Gaojing Yang and Yaxun Zhu and Zhimeng Hao and Qiu Zhang and Yong Lu …
Alkaline Quinone Flow Battery with Long Lifetime at pH 12
After the functionalization, the resulting DBEAQ isomers (Figures 1 B and S1–S3) showed a significant improvement in solubility versus their hydroxyl counterparts at both pH 14 and pH 12.For instance, the room-temperature solubility of 2,6-DBEAQ exceeded 1 M in pH 14 and 0.5 M in pH 12 KOH solution (Table S1), as opposed to 0.6 M 4 and 0.1 …
An Aqueous All‐Quinone‐Based Redox Flow Battery Employing …
Redox flow batteries (RFBs) are considered as promising candidates for large‐scale energy storage. However, traditional RFBs based on toxic metal ions have deficiencies in resource utilization and environmental protection. Considering the corrosiveness of acidic and alkaline electrolytes and sustainability of energy storage …
Membraneless Micro Redox Flow Battery: From Vanadium to …
batteries by using an alkaline quinone-based electrolyte are ... The membraneless Micro Redox Flow Battery used in this research is based on the one presented by Oraá-Poblete et al.[21] with an improvement of the electrical external contacts. The details of reactor design and microfluidic system are explained in S1 of Supporting …
High-Performance Aqueous Organic Flow Battery with Quinone-Based …
High-Performance Aqueous Organic Flow Battery with Quinone-Based Redox Couples at Both Electrodes. Bo Yang 2,1, Lena Hoober-Burkhardt 2,1, Sankarganesh ... Aziz et al. have also reported a redox flow battery with an anthraquinone-based couple on the negative electrode with the ferro/ferricyanide couple at the positive electrode in …
Organic Redox Species in Aqueous Flow Batteries: Redox Potentials, Chemical Stability and Solubility …
In this paper 33, mainly quinone-based, compounds are studied experimentially in terms of pH dependent redox potential, solubility and stability, combined with single cell battery RFB tests on ...
An Aqueous All‐Quinone‐Based Redox Flow Battery Employing …
Considering the corrosiveness of acidic and alkaline electrolytes and sustainability of energy storage devices, neutral aqueous organic redox flow batteries …
Computational design of quinone electrolytes for redox flow …
Keywords: quinones, redox flow battery, machine learning, solvation free energy, HOMO-LUMO gap. Citation: Wang F, Li J, Liu Z, Qiu T, Wu J and Lu D (2023) Computational design of quinone electrolytes for redox flow batteries using high-throughput machine learning and theoretical calculations. Front. Chem. Eng. 4:1086412. doi: …
Rational Evaluation and Cycle Life Improvement of Quinone-Based Aqueous Flow Batteries …
Optical spectrophotometry illuminates these transitions and demonstrates the value of in-line monitoring of quinone-based flow batteries. With this insight, we demonstrate a practical, passive electrolyte balancing method by adding HBr to the negolyte, thus creating a Br − gradient toward the posolyte and averting rapid capacity …
Computational design of molecules for an all-quinone redox flow battery
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.
A dibutylhydroquinone/dibutylbenzoquinone-Cd2+/Cd self-stratified Battery
In this paper, we propose a quinone-based self-stratified battery (QSB), consisting of an organic catholyte at the top, an aqueous electrolyte in the middle, and a cadmium metal negative electrode at the bottom, as shown in Fig. 1 a and 1 b. The positive redox material, 2,5-di-tert-butyl-1,4-hydroquinone [DBHQ] and its oxidized state, 2, 5-di …