阳极
法拉第效率
双功能
化学
相间
锌
化学工程
水溶液
无机化学
离子键合
乙二胺四乙酸
金属有机骨架
离子
电极
催化作用
有机化学
螯合作用
物理化学
吸附
生物
遗传学
工程类
作者
Ruochen Zhang,Feng Yang,Youxuan Ni,Beidou Zhong,Maoyu Peng,Tianjiang Sun,Shan Chen,Huan Wang,Zhanliang Tao,Kai Zhang
标识
DOI:10.1002/ange.202304503
摘要
Abstract Aqueous zinc batteries (AZBs) feature high safety and low cost, but intricate anodic side reactions and dendrite growth severely restrict their commercialization. Herein, ethylenediaminetetraacetic acid (EDTA) grafted metal organic framework (MOF‐E) is proposed as a dually‐functional anodic interphase for sustainable Zn anode. Specifically, the target‐distributed EDTA serves as an ion‐trapped tentacle to accelerate the desolvation and ionic transport by powerful chemical coordination, while the MOFs offer suitable ionic channels to induce oriented deposition. As a result, MOF‐E interphase fundamentally suppresses side reactions and guides horizontally arranged Zn deposition with (002) preferred orientations. The Zn|MOF‐E@Cu cell exhibits a markedly improved Coulombic efficiency of 99.7 % over 2500 cycles, and the MOF‐E@Zn|KVOH (KV 12 O 30‐y ⋅ nH 2 O) cell yields a steady circulation of 5000 cycles@90.47 % at 8 A g −1 .
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