2‐Methoxyhydroquinone from Vanillin for Aqueous Redox‐Flow Batteries

We show the synthesis of a redox‐active quinone, 2‐methoxy‐1,4‐hydroquinone (MHQ), from a bio‐based feedstock and its suitability as electrolyte in aqueous redox flow batteries. We identified semiquinone intermediates at insufficiently low pH and quinoid radicals as responsible for decomposition of...

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Autores principales: Schlemmer, Werner, Nothdurft, Philipp, Petzold, Alina, Riess, Gisbert, Frühwirt, Philipp, Schmallegger, Max, Gescheidt‐Demner, Georg, Fischer, Roland, Freunberger, Stefan A., Kern, Wolfgang, Spirk, Stefan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2020
Materias:
Communications
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7891622/
https://www.ncbi.nlm.nih.gov/pubmed/32815619
http://dx.doi.org/10.1002/anie.202008253
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author Schlemmer, Werner
Nothdurft, Philipp
Petzold, Alina
Riess, Gisbert
Frühwirt, Philipp
Schmallegger, Max
Gescheidt‐Demner, Georg
Fischer, Roland
Freunberger, Stefan A.
Kern, Wolfgang
Spirk, Stefan
author_facet Schlemmer, Werner
Nothdurft, Philipp
Petzold, Alina
Riess, Gisbert
Frühwirt, Philipp
Schmallegger, Max
Gescheidt‐Demner, Georg
Fischer, Roland
Freunberger, Stefan A.
Kern, Wolfgang
Spirk, Stefan
author_sort Schlemmer, Werner
collection PubMed
description We show the synthesis of a redox‐active quinone, 2‐methoxy‐1,4‐hydroquinone (MHQ), from a bio‐based feedstock and its suitability as electrolyte in aqueous redox flow batteries. We identified semiquinone intermediates at insufficiently low pH and quinoid radicals as responsible for decomposition of MHQ under electrochemical conditions. Both can be avoided and/or stabilized, respectively, using H(3)PO(4) electrolyte, allowing for reversible cycling in a redox flow battery for hundreds of cycles.
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spelling pubmed-78916222021-03-02 2‐Methoxyhydroquinone from Vanillin for Aqueous Redox‐Flow Batteries Schlemmer, Werner Nothdurft, Philipp Petzold, Alina Riess, Gisbert Frühwirt, Philipp Schmallegger, Max Gescheidt‐Demner, Georg Fischer, Roland Freunberger, Stefan A. Kern, Wolfgang Spirk, Stefan Angew Chem Int Ed Engl Communications We show the synthesis of a redox‐active quinone, 2‐methoxy‐1,4‐hydroquinone (MHQ), from a bio‐based feedstock and its suitability as electrolyte in aqueous redox flow batteries. We identified semiquinone intermediates at insufficiently low pH and quinoid radicals as responsible for decomposition of MHQ under electrochemical conditions. Both can be avoided and/or stabilized, respectively, using H(3)PO(4) electrolyte, allowing for reversible cycling in a redox flow battery for hundreds of cycles. John Wiley and Sons Inc. 2020-10-08 2020-12-14 /pmc/articles/PMC7891622/ /pubmed/32815619 http://dx.doi.org/10.1002/anie.202008253 Text en © 2020 The Authors. Published by Wiley-VCH GmbH This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.
spellingShingle Communications
Schlemmer, Werner
Nothdurft, Philipp
Petzold, Alina
Riess, Gisbert
Frühwirt, Philipp
Schmallegger, Max
Gescheidt‐Demner, Georg
Fischer, Roland
Freunberger, Stefan A.
Kern, Wolfgang
Spirk, Stefan
2‐Methoxyhydroquinone from Vanillin for Aqueous Redox‐Flow Batteries
title 2‐Methoxyhydroquinone from Vanillin for Aqueous Redox‐Flow Batteries
title_full 2‐Methoxyhydroquinone from Vanillin for Aqueous Redox‐Flow Batteries
title_fullStr 2‐Methoxyhydroquinone from Vanillin for Aqueous Redox‐Flow Batteries
title_full_unstemmed 2‐Methoxyhydroquinone from Vanillin for Aqueous Redox‐Flow Batteries
title_short 2‐Methoxyhydroquinone from Vanillin for Aqueous Redox‐Flow Batteries
title_sort 2‐methoxyhydroquinone from vanillin for aqueous redox‐flow batteries
topic Communications
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7891622/
https://www.ncbi.nlm.nih.gov/pubmed/32815619
http://dx.doi.org/10.1002/anie.202008253
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