Long-cycling of a water-soluble quinizarin ...
Document type :
Article dans une revue scientifique
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Title :
Long-cycling of a water-soluble quinizarin derivative in redox flow batteries: Role of the cut-off voltage on the stability
Author(s) :
Ozouf, Ines [Auteur]
Institut des Sciences Chimiques de Rennes [ISCR]
Fontmorin, Jean-Marie [Auteur]
Institut des Sciences Chimiques de Rennes [ISCR]
Lebeuf, Raphael [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Mathieu, Gaël [Auteur]
Institut des Sciences Chimiques de Rennes [ISCR]
Guiheneuf, S. [Auteur]
Institut des Sciences Chimiques de Rennes [ISCR]
Ozouf, G. [Auteur]
Rataj, Véronique [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Godet-Bar, T. [Auteur]
Floner, Didier [Auteur]
Institut des Sciences Chimiques de Rennes [ISCR]
Aubry, Jean-Marie [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Geneste, Florence [Auteur]
Institut des Sciences Chimiques de Rennes [ISCR]
Institut des Sciences Chimiques de Rennes [ISCR]
Fontmorin, Jean-Marie [Auteur]
Institut des Sciences Chimiques de Rennes [ISCR]
Lebeuf, Raphael [Auteur]

Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Mathieu, Gaël [Auteur]
Institut des Sciences Chimiques de Rennes [ISCR]
Guiheneuf, S. [Auteur]
Institut des Sciences Chimiques de Rennes [ISCR]
Ozouf, G. [Auteur]
Rataj, Véronique [Auteur]

Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Godet-Bar, T. [Auteur]
Floner, Didier [Auteur]
Institut des Sciences Chimiques de Rennes [ISCR]
Aubry, Jean-Marie [Auteur]

Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Geneste, Florence [Auteur]
Institut des Sciences Chimiques de Rennes [ISCR]
Journal title :
Electrochimica Acta
Abbreviated title :
Electrochimica Acta
Volume number :
475
Pages :
143570
Publisher :
Elsevier BV
Publication date :
2024-01-20
ISSN :
0013-4686
English keyword(s) :
aqueous organic redox flow battery
quinizarin
stability
cut-off voltage
anthraquinone
quinizarin
stability
cut-off voltage
anthraquinone
HAL domain(s) :
Chimie/Chimie organique
English abstract : [en]
To improve the industrial applicability of aqueous organic redox flow batteries (AORFB), inexpensive redox compounds highly soluble in aqueous medium and stable during cycling are required. Thus, a water-soluble quinizarin ...
Show more >To improve the industrial applicability of aqueous organic redox flow batteries (AORFB), inexpensive redox compounds highly soluble in aqueous medium and stable during cycling are required. Thus, a water-soluble quinizarin derivative, 1,4-dihydroxy-2-carboxymethyl-9,10-anthraquinone (1,4-CDHAQ) prepared by a one-pot synthesis from relatively low-cost leucoquinizarin (widely used as intermediate in the dye industry) is evaluated in AORFB. It exhibits a good solubility in basic medium (> 0.4 M) and a low potential (-0.64 V vs Ag/AgCl) leading to a cell voltage of about 1 V when paired with ferri/ferrocyanide couple. Long-cycling AORFB of 2.5 months performed at a concentration of 0.4 M gives good performance in terms of energy efficiency and power density. The influence of the temperature on ASR values and so on the power density underlines the difficulty to obtain reproducible results at room temperature. A capacity fade rate of 0.008 %/cycle (0.28 %/day) is obtained after 2500 cycles, which is close to other values reported for anthraquinones in strong basic medium for long-cycling tests. Interestingly, the discharge cut-off voltage clearly affects the stability of the battery, leading to the formation of different degradation products as shown by 1H NMR. These results highlight the importance of the cycling conditions to improve the battery performance.Show less >
Show more >To improve the industrial applicability of aqueous organic redox flow batteries (AORFB), inexpensive redox compounds highly soluble in aqueous medium and stable during cycling are required. Thus, a water-soluble quinizarin derivative, 1,4-dihydroxy-2-carboxymethyl-9,10-anthraquinone (1,4-CDHAQ) prepared by a one-pot synthesis from relatively low-cost leucoquinizarin (widely used as intermediate in the dye industry) is evaluated in AORFB. It exhibits a good solubility in basic medium (> 0.4 M) and a low potential (-0.64 V vs Ag/AgCl) leading to a cell voltage of about 1 V when paired with ferri/ferrocyanide couple. Long-cycling AORFB of 2.5 months performed at a concentration of 0.4 M gives good performance in terms of energy efficiency and power density. The influence of the temperature on ASR values and so on the power density underlines the difficulty to obtain reproducible results at room temperature. A capacity fade rate of 0.008 %/cycle (0.28 %/day) is obtained after 2500 cycles, which is close to other values reported for anthraquinones in strong basic medium for long-cycling tests. Interestingly, the discharge cut-off voltage clearly affects the stability of the battery, leading to the formation of different degradation products as shown by 1H NMR. These results highlight the importance of the cycling conditions to improve the battery performance.Show less >
Language :
Anglais
Audience :
Internationale
Popular science :
Non
Other project(s) or funding source(s) :
CNRS Energy unit (PEPS Cellule Energie 2021)
Administrative institution(s) :
Université de Lille
CNRS
Centrale Lille
ENSCL
Univ. Artois
CNRS
Centrale Lille
ENSCL
Univ. Artois
Collections :
Research team(s) :
Colloïdes catalyse oxydation (CÏSCO)
Submission date :
2023-12-06T13:16:55Z
2023-12-07T15:33:27Z
2023-12-07T15:33:27Z
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