A systematic study of the co-solvent effect for an all-organic redox flow battery

Xiang Wang, Xueqi Xing, Yongjie Huo, Yicheng Zhao*, Yongdan Li

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)
109 Downloads (Pure)

Abstract

Benzophenone and 1,4-di-tert-butyl-2,5-dimethoxybenzene are used as the anode and cathode active species respectively in an all-organic redox-flow battery. A number of organics as the co-solvents are applied in the electrolyte to improve the electrochemical performance of it. For all kinds of the mixed solvents, a lower content of acetonitrile leads to a higher solubility to 1,4-di-tert-butyl-2,5-dimethoxybenzene and a lower conductivity. The results of cyclic voltammetry tests demonstrate that the electrode reactions are controlled by diffusion. With the decrease of the content of acetonitrile, the dynamic viscosity of the electrolyte increases, which generally leads to the decrease of the diffusion coefficients of the active species.

Original languageEnglish
Pages (from-to)24422-24427
Number of pages6
JournalRSC Advances
Volume8
Issue number43
DOIs
Publication statusPublished - 1 Jan 2018
MoE publication typeA1 Journal article-refereed

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