电化学
锌
水溶液
二价
法拉第效率
离子
化学
电池(电)
共价有机骨架
共价键
对苯二酚
无机化学
电极
有机化学
物理化学
功率(物理)
物理
量子力学
作者
Abdul Khayum M,Meena Ghosh,Vidyanand Vijayakumar,Arjun Halder,Maryam Nurhuda,Sushil Kumar,Matthew A. Addicoat,Sreekumar Kurungot,Rahul Banerjee
出处
期刊:Chemical Science
[The Royal Society of Chemistry]
日期:2019-01-01
卷期号:10 (38): 8889-8894
被引量:217
摘要
The two-dimensional structural features of covalent organic frameworks (COFs) can promote the electrochemical storage of cations like H+, Li+, and Na+ through both faradaic and non-faradaic processes. However, the electrochemical storage of cations like Zn2+ ion is still unexplored although it bears a promising divalent charge. Herein, for the first time, we have utilized hydroquinone linked β-ketoenamine COF acting as a Zn2+ anchor in an aqueous rechargeable zinc ion battery. The charge-storage mechanism comprises of an efficient reversible interlayer interaction of Zn2+ ions with the functional moieties in the adjacent layers of COF (-182.0 kcal mol-1). Notably, due to the well-defined nanopores and structural organization, a constructed full cell, displays a discharge capacity as high as 276 mA h g-1 at a current rate of 125 mA g-1.
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