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聚 () -梯式二维结合共有机框架用于快速的质子存储

Mingchao Wang¹, Gang Wang^1,2,3, Chandrasekhar Naisa^1,4

¹Center for Advancing Electronics Dresden (cfaed) and Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Mommsenstrasse 4, 01062, Dresden, Germany.

Angewandte Chemie (International ed. in English)

|September 10, 2023

概括

这项研究引入了一种新的2D联共价有机框架 (2D c-COF),用于在水性电池中高效的电化学质子储存. 该材料展示了高速率的能力,为先进的储能解决方案铺平了道路.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
储能储能储能储能储能储能

背景情况:

电化学质子储存对于水电池等高速储能装置至关重要.
作为电极材料,二维联共价有机框架 (2D c-COF) 是有前途的,但它们的质子和金属离子存储机制尚不清楚.
在COF中储存质子是一个尚未探索的领域.

研究的目的:

报告一个新的BBL梯型2Dc-COF用于快速质子储存.
在这个二维c-COF中研究质子储存机制.
突出BBL梯型2D合聚合物在能源设备中的潜力.

主要方法:

合成一种基于氨酸的多基基基基 (BBL) 阶梯型2D c-COF.
在温和水性Zn离子电解质和强酸中进行电化学测试.
通过π-移位效应分析质子亲和力和动力学.

主要成果:

合成的2D c-COF表现出快速质子储存能力.
在COF中放电的C-O−组显示由于π-移位而降低了基本性,增强了质子亲和力.
电极实现了200 A g-1 (超过2500 C) 的出色速率能力,优于现有的合聚合物,COF和金属有机框架.

结论:

这项工作展示了COF中纯质子储存的第一个例子.
这种BBL梯型的2D c-COF显示出对质子存储的优越电化学性能.
该研究强调了BBL梯型2D合聚合物在下一代能源存储应用中的巨大潜力.

关键词:

2D 结合式 COFs 的使用.聚 (Poly) (Poly) (Poly) (Poly) (Benz) (Benz) (Benz) (Poly) (Poly) (Poly) (Poly) (Poly) (Poly) (Poly) (Poly) (Poly) (Poly) (Poly) (Poly) (Poly) (Poly) (Poly) (Poly) (Poly) (Poly) (Poly)质子储存系统质子储存系统强酸是一种强酸.离子电解质的电解质

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