High-capacity hexaazatrinaphthylene anode for aqueous organic hybrid flow battery battery

Journal of Materials Chemistry A ( IF 12.7 ), https://doi.org/10.1039/D1TA06138K
Zirui Liu, Zheng Wang, Yanjun Shi, Yong-Miao Shen, Wenchang Wang, Zhidong Chen, Juan Xu and Jianyu Cao

By using a microwave assisted Schiff-base condensation reaction between triquinoyl and 1,2-diaminobenzene, we synthesize a water-insoluble fused phenazine derivative, hexaazatrinaphtylene (HATN), and study its electrochemical performance against a ferrocyanide catholyte in an alkaline aqueous hybrid flow battery. Reversible two-step three-electron transfers and rapid surface-controlled redox reaction kinetics are observed for the HATN electrode in alkaline aqueous solution. Compared to previously-reported organic anode materials for aqueous hybrid flow battery, the HATN exhibits greatly enhanced specific capacity and comparable efficiency and cycling stability.

此项研究得到了国家自然科学基金和江苏省绿色催化重点实验室科学基金的资助，并于近日发表于国际顶级期刊Journal of Materials Chemistry A上。

曹剑瑜-许娟课题组致力于有机电活性材料和液流电池技术的相关基础和应用研究。近年来，在有机液流电池、有机混合液流电池和有机水系二次电池领域取得了一系列成果，先后在J. Mater. Chem. A (2017、2020、2021)、ChemComm (2020)、J. Power Sources(2018、2019、2020)、Carbon (2020)、ACS Appl. Energy Mater. (2021)等刊物上发表相关研究论文。