A High-Potential Bipolar Phenothiazine Derivative Cathode for Aqueous Zinc Batteries.

Autor: Wang Y; School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, China., Qiu S; School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, China., He D; School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, China., Guo J; School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, China., Zhao M; School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, China., Zheng C; School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, China., Wang X; School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, China., Wang C; School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, China.
Jazyk: angličtina
Zdroj: ChemSusChem [ChemSusChem] 2023 Oct 06; Vol. 16 (19), pp. e202300658. Date of Electronic Publication: 2023 Aug 11.
DOI: 10.1002/cssc.202300658
Abstrakt: Aqueous zinc ion batteries (AZIBs) are gaining popularity as advanced energy storage devices that are economical, safe, and use resource-abundant storage options. In this study, we have synthesized a bipolar phenothiazine organic scaffold known as 3,7-bis(melaminyl)phenothiazin-5-ium iodide (PTDM), which is obtained by undergoing nucleophilic substitution through phenothiazinium tetraiodide hydrate (PTD) and melamine. Electrochemical results indicate that PTDM can act as a high-potential cathode material for rechargeable AZIBs. In detail, the aqueous PTDM//Zn full cell exhibits a high average voltage of approximate 1.13 V, along with a specific capacity of 118.3 mAh g -1 at 0.1 A g -1 . Furthermore, this demonstrated cell displays moderate long-term cycling stability over 6400 cycles, which is encouraging and suggests potential for developing advanced organic electrode materials for rechargeable AZIBs.
(© 2023 Wiley-VCH GmbH.)
Databáze: MEDLINE
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