四嗪
材料科学
水溶液
杂原子
电解质
电极
无机化学
法拉第效率
物理化学
有机化学
化学
戒指(化学)
作者
C. W. Walter,Mohammed Yaseen,Jaehyun Park,Madison R. Tuttle,Sophia Taylor,Shiyu Zhang
标识
DOI:10.1021/acsami.3c17412
摘要
We present the investigation of 1,2,4,5-tetrazine derivatives as low-cost and synthetically modular organic electrode materials in rechargeable aqueous Zn-ion batteries (AZIBs). The substituents at the 3,6-positions of tetrazine were found to be critical for cycling stability. While heteroatom substituents (chloro, methoxy, and pyrazole) lead to the rapid decomposition of electrode materials in the electrolyte, the installation of phenyl groups enhances the cycling stability via π-π stacking. Spectroscopic characterization suggests a cooperative Zn2+ and H+ insertion mechanism. This unique cooperativity of Zn2+ and H+ leads to a steady discharge plateau in contrast to the undesirable sloping voltage profile typically observed in Zn-organic batteries.
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