Improved radical stability of viologen anolytes in aqueous organic redox flow batteries

Bo Hu; Yijie Tang; Jian Luo; Grant Grove; Yisong Guo; T. Leo Liu

doi:10.1039/C8CC02336K

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Improved radical stability of viologen anolytes in aqueous organic redox flow batteries†

Bo Hu,^a Yijie Tang,^b Jian Luo,

^a Grant Grove,^a Yisong Guo

^b and T. Leo Liu

*^a

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* Corresponding authors

^a Department of Chemistry and Biochemistry, Utah State University, Logan, USA
E-mail: leo.liu@usu.edu

^b Department of Chemistry, Carnegie Mellon University, Pittsburgh, USA

Abstract

A high voltage (1.38 V) total organic aqueous redox flow battery is reported using 1,1′-bis[3-(trimethylammonio)propyl]-4,4′-bipyridinium tetrachloride ((NPr)₂V) as an anolyte and 4-trimethylammonium-TEMPO chloride (N^Me-TEMPO) as a catholyte. The exceptional radical stability of [(NPr)₂V]⁺˙ enabled the flow battery in achieving 97.48% capacity retention for 500 cycles and a power density of 128.2 mW cm⁻².

This article is part of the themed collection: 2018 Emerging Investigators

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Article information

DOI: https://doi.org/10.1039/C8CC02336K
Article type: Communication
Submitted: 26 mar 2018
Accepted: 01 may 2018
First published: 01 may 2018

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Chem. Commun., 2018,54, 6871-6874

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Improved radical stability of viologen anolytes in aqueous organic redox flow batteries

B. Hu, Y. Tang, J. Luo, G. Grove, Y. Guo and T. L. Liu, Chem. Commun., 2018, 54, 6871 DOI: 10.1039/C8CC02336K

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Chemical Communications

Improved radical stability of viologen anolytes in aqueous organic redox flow batteries†

Abstract

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Improved radical stability of viologen anolytes in aqueous organic redox flow batteries

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