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硫电池的共价有机框架:多功能性,催化机制和现场表征

Siyu Li¹, Yang Ou¹, Yifan Zhang¹

¹Department of Chemical Engineering, School of Environmental and Chemical Engineering, Shanghai University, 99 Shang da Road, Shanghai, 200444, P. R. China.

Chemistry (Weinheim an der Bergstrasse, Germany)

|July 1, 2025

概括

联有机框架 (COF) 通过解决聚硫化物穿和改善动力学来增强硫电池 (LSB). 本综述详细介绍了高级LSB的COF应用和催化机制.

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
纳米技术纳米技术

背景情况:

硫电池 (LSB) 提供高能量密度,但面临诸如聚硫化物穿和电极稳定性差等挑战.
聚合有机框架 (COFs) 正因其多孔性,可调性特性和结构秩序而成为有前途的材料.

研究的目的:

系统地审查最近在基于COF的战略中取得的进展,以提高LSB的性能.
阐明LSB中COF的催化机制,并突出其多功能作用.
强调在现场表征技术的应用,以了解COF介导的过程.

主要方法:

在LSB中对COF应用的文献综述,重点关注硫宿主,分离器和催化剂添加剂.
分析主要的催化机制:静电场,超分子通道,氧还原介导和金属协调催化.
讨论现场表征技术 (拉曼,FTIR,XRD) 以获得机械洞察力.

主要成果:

氧化有效地减轻聚硫化物穿,并增强LSB中的电化学动力学.
碳氧化具有多种作用,包括作为硫宿主,先进的分离器/中间层和有效的催化添加剂.
现场技术提供了对COF催化聚硫化物转换的关键机制理解.

结论:

COF显示出克服LSB技术中的关键挑战的巨大潜力.
了解COF的结构-功能-性能关系对于合理的材料设计至关重要.
基于COF的材料已经准备好实现下一代高性能LSB.

关键词:

催化剂是一种催化剂.共价有机框架是共价有机框架.在现场表征.硫电池是硫电池的一种.聚硫化物航天飞机的航天飞机

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