Determining Vanadium Concentrations Using the UV-Vis Response Method
| Autor: | Leonard J. Bonville, James M. Fenton, H. Russell Kunz, Curtis J. Bell, R. Paul Brooker |
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| Rok vydání: | 2015 |
| Předmět: |
Renewable Energy
Sustainability and the Environment business.industry Electrical engineering Vanadium chemistry.chemical_element Charge (physics) Reuse Permission Condensed Matter Physics Flow battery Surfaces Coatings and Films Electronic Optical and Magnetic Materials Ultraviolet visible spectroscopy State of charge chemistry Materials Chemistry Electrochemistry Process engineering business Voltage |
| Zdroj: | Journal of The Electrochemical Society. 162:A608-A613 |
| ISSN: | 1945-7111 0013-4651 |
| DOI: | 10.1149/2.0371504jes |
| Popis: | The ability to determine the state of charge of vanadium solutions is critical to understanding reaction mechanisms and charge transport dynamics. This paper describes in detail the methods used to generate quantitative concentrations of three of the four species in an all-vanadium flow battery. The UV-Vis method was shown to provide concentration values that were more reliable than using either an electrode voltage or the integrated current with respect to time. Furthermore, a method was proposed to bring flow battery system into charge balance by independently reducing the negative electrolyte. © The Author(s) 2015. Published by ECS. This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives 4.0 License (CC BY-NC-ND, http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial reuse, distribution, and reproduction in any medium, provided the original work is not changed in any way and is properly cited. For permission for commercial reuse, please email: oa@electrochem.org. [DOI: 10.1149/2.0371504jes] All rights reserved. |
| Databáze: | OpenAIRE |
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