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A Tubular Electrochemical Reactor for Slurry Electrodes

The research on electrochemical reactors is mostly limited to planarly designed modules. In this study, we compare a tubular and a planar electrochemical reactor for the utilization of the slurry electrodes. Cylindrical formed geometries demonstrate a higher surface‐to‐volume ratio, which may be fav...

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Detalles Bibliográficos
Autores principales: Percin, Korcan, Zoellner, Oliver, Rall, Deniz, Wessling, Matthias
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7386916/
https://www.ncbi.nlm.nih.gov/pubmed/32742913
http://dx.doi.org/10.1002/celc.202000616
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author Percin, Korcan
Zoellner, Oliver
Rall, Deniz
Wessling, Matthias
author_facet Percin, Korcan
Zoellner, Oliver
Rall, Deniz
Wessling, Matthias
author_sort Percin, Korcan
collection PubMed
description The research on electrochemical reactors is mostly limited to planarly designed modules. In this study, we compare a tubular and a planar electrochemical reactor for the utilization of the slurry electrodes. Cylindrical formed geometries demonstrate a higher surface‐to‐volume ratio, which may be favorable in terms of current density and volumetric power density. A tubular shaped electrochemical reactor is designed with conductive static mixers to promote the slurry particle mixing, and the vanadium redox flow battery is selected as a showcase application. The new tubular design presents similar cell resistances to the previously designed planar battery and shows increased discharge polarization behavior up to 100 mA cm(−2). The volumetric power density reaches up to 30 mW cm(−3), which is two times higher than that of the planar one. The battery performance is further investigated and 85 % coulombic, 70 % voltage and 60 % energy efficiency is found at 15 mA cm(−2) with 15 wt.% slurry content.
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spelling pubmed-73869162020-07-30 A Tubular Electrochemical Reactor for Slurry Electrodes Percin, Korcan Zoellner, Oliver Rall, Deniz Wessling, Matthias ChemElectroChem Articles The research on electrochemical reactors is mostly limited to planarly designed modules. In this study, we compare a tubular and a planar electrochemical reactor for the utilization of the slurry electrodes. Cylindrical formed geometries demonstrate a higher surface‐to‐volume ratio, which may be favorable in terms of current density and volumetric power density. A tubular shaped electrochemical reactor is designed with conductive static mixers to promote the slurry particle mixing, and the vanadium redox flow battery is selected as a showcase application. The new tubular design presents similar cell resistances to the previously designed planar battery and shows increased discharge polarization behavior up to 100 mA cm(−2). The volumetric power density reaches up to 30 mW cm(−3), which is two times higher than that of the planar one. The battery performance is further investigated and 85 % coulombic, 70 % voltage and 60 % energy efficiency is found at 15 mA cm(−2) with 15 wt.% slurry content. John Wiley and Sons Inc. 2020-06-25 2020-06-17 /pmc/articles/PMC7386916/ /pubmed/32742913 http://dx.doi.org/10.1002/celc.202000616 Text en © 2020 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Articles
Percin, Korcan
Zoellner, Oliver
Rall, Deniz
Wessling, Matthias
A Tubular Electrochemical Reactor for Slurry Electrodes
title A Tubular Electrochemical Reactor for Slurry Electrodes
title_full A Tubular Electrochemical Reactor for Slurry Electrodes
title_fullStr A Tubular Electrochemical Reactor for Slurry Electrodes
title_full_unstemmed A Tubular Electrochemical Reactor for Slurry Electrodes
title_short A Tubular Electrochemical Reactor for Slurry Electrodes
title_sort tubular electrochemical reactor for slurry electrodes
topic Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7386916/
https://www.ncbi.nlm.nih.gov/pubmed/32742913
http://dx.doi.org/10.1002/celc.202000616
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