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.

此項研究得到了國家自然科學基金和江蘇省綠色催化重點實驗室科學基金的資助，并于近日發(fā)表于國際頂級期刊Journal of Materials Chemistry A上。

曹劍瑜-許娟課題組致力于有機電活性材料和液流電池技術(shù)的相關(guān)基礎(chǔ)和應用研究。近年來，在有機液流電池、有機混合液流電池和有機水系二次電池領(lǐng)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)等刊物上發(fā)表相關(guān)研究論文。