Issue 33, 2024

In situ electrosynthesis of quinone-based redox-active molecules coupling with high-purity hydrogen production

Abstract

Clean hydrogen production via conventional water splitting involves sluggish anodic oxygen evolution, which can be replaced with more valuable electrosynthesis reactions. Here, we propose one novel strategy for coupling in situ organic electrosynthesis with high-purity hydrogen production. A benzoquinone-derivative disodium 4,5-dihydroxy-1,3-benzenedisulfonate (Tiron)-o1 and a naphthoquinone-derivative 2,6,8-trismethylaminemethylene-3,5-dihydroxy-1,4-naphthoquinone (TANQ) were in situ electrosynthesized and directly used in a flow battery without any further purification treatment. Constant, simultaneous production of TANQ and hydrogen was demonstrated for 61 hours, while stable charge–discharge capacities were retained for 1000 cycles. The work provided a new avenue for achieving in situ redox-active molecule synthesis and high-purity hydrogen.

Graphical abstract: In situ electrosynthesis of quinone-based redox-active molecules coupling with high-purity hydrogen production

Supplementary files

Article information

Article type
Edge Article
Submitted
08 May 2024
Accepted
29 Jun 2024
First published
02 Jul 2024
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY license

Chem. Sci., 2024,15, 13185-13190

In situ electrosynthesis of quinone-based redox-active molecules coupling with high-purity hydrogen production

H. Ji, Z. Zhao, C. Zhang and X. Li, Chem. Sci., 2024, 15, 13185 DOI: 10.1039/D4SC03033H

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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