Issue 61, 2021

Anthraquinone-2,6-disulfamidic acid: an anolyte with low decomposition rates at elevated temperatures

Abstract

A new sulfamidic acid anthraquinone derivative was synthesized from 2,6-diaminoanthraquinone with high yields, designed for utilization in redox flow batteries. The active material was investigated with cyclic voltammetry, revealing a reversible redox reaction at approximately −0.65 V vs. Ag/AgCl at pH-values above 12. A stress test in a redox flow battery was applied with hold times at critical states of charge and at 32 °C as well as at 60 °C. Furthermore, the stability was investigated at the maximum concentration of the anolyte. All in all, the material showed the lowest decomposition rates at 60 °C reported so far for an organic anolyte in a redox flow battery.

Graphical abstract: Anthraquinone-2,6-disulfamidic acid: an anolyte with low decomposition rates at elevated temperatures

Supplementary files

Article information

Article type
Paper
Submitted
19 Jūl. 2021
Accepted
09 Nov. 2021
First published
03 Dec. 2021
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2021,11, 38759-38764

Anthraquinone-2,6-disulfamidic acid: an anolyte with low decomposition rates at elevated temperatures

P. Rohland, K. Schreyer, M. D. Hager and U. S. Schubert, RSC Adv., 2021, 11, 38759 DOI: 10.1039/D1RA05545C

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