| Title: |
In situ bulk magnetization measurements reveal the state of charge of redox flow batteries |
| Authors: |
Grey, Clare; Zhao, Evan Wenbo; Shellard, Edward JK; Klusener, Peter AA |
| Publisher Information: |
Royal Society of Chemistry; Department of Chemistry; //doi.org/10.1039/d1cc01895g; Chemical Communications |
| Publication Year: |
2022 |
| Collection: |
Apollo - University of Cambridge Repository |
| Subject Terms: |
34 Chemical Sciences; 3406 Physical Chemistry |
| Description: |
We report two methods, including NMR spectroscopy and direct magnetic susceptibility measurement, for in situ (strictly online) measurement of the state of charge of redox flow batteries. These methods are demonstrated on the inorganic redox-active catholyte potassium ferro/ferri cyanide cycled against 2,6-dihydroxyanthraquinone as the anolyte in a full cell, and should be applicable to a wide range of redox couples, provided that the magnetization of the electrolyte solution depends on its oxidation state. ; C.P.G. acknowledges support from Centre of Advanced Materials for Integrated Energy Systems (CAM-IES) via EPSRC grant number EP/P007767/1, and support from Shell. E.W.Z. acknowledges the start-up support from Institute for Molecules and Materials, Radboud University Nijmegen. The authors acknowledge Prof. Dominic Wright from the University of Cambridge for helpful discussions, and Dr. Chris Brackstone from the physical teaching laboratory for lending the Evans balance. |
| Document Type: |
article in journal/newspaper |
| File Description: |
application/pdf |
| Language: |
English |
| Relation: |
https://www.repository.cam.ac.uk/handle/1810/331740.2 |
| Availability: |
https://www.repository.cam.ac.uk/handle/1810/331740.2 |
| Rights: |
Attribution 4.0 International ; https://creativecommons.org/licenses/by/4.0/ |
| Accession Number: |
edsbas.437DC8D3 |
| Database: |
BASE |