多金属氧酸盐
超分子化学
锌
电解质
阳极
溶解
离子键合
阳离子聚合
氢键
三吡啶
材料科学
纳米技术
电极
离子
化学工程
化学
结晶学
分子
金属
有机化学
物理化学
高分子化学
晶体结构
工程类
催化作用
作者
Ming-Feng Wei,Fengxue Duan,Bao Li,Yizhan Wang,Lixin Wu
出处
期刊:Nano Letters
[American Chemical Society]
日期:2024-03-14
卷期号:24 (14): 4124-4131
标识
DOI:10.1021/acs.nanolett.3c05034
摘要
Dynamic reversible noncovalent interactions make supramolecular framework (SF) structures flexible and designable. A three-dimensional (3D) growth of such frameworks is beneficial to improve the structure stability while maintaining unique properties. Here, through the ionic interaction of the polyoxometalate cluster, coordination of zinc ions with cationic terpyridine, and hydrogen bonding of grafted carboxyl groups, the construction of a 3D SF at a well-crystallized state is realized. The framework can grow in situ on the Zn surface, further extending laterally into a full covering without defects. Relying on the dissolution and the postcoordination effects, the 3D SF layer is used as an artificial solid electrolyte interphase to improve the Zn-anode performance. The uniformly distributed clusters within nanosized pores create a negatively charged nanochannel, accelerating zinc ion transfer and homogenizing zinc deposition. The 3D SF/Zn symmetric cells demonstrate high stability for over 3000 h at a current density of 5 mA cm–2.
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