为高性能水性双离子电池制造N-丰富的Tris ((triazole) 基2D合金属有机框架
Le Liu1,2, Jie Yu3, Hong Wang2
1State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, China.
Angewandte Chemie (International ed. in English)
|March 2, 2026
概括
新的二维合金属有机框架 (c-MOF) 在水性双离子电池 (ADIB) 中表现出增强的性能. 这些TPT-M-MOF中的富含N的地点和金属中心是改善储存和电池循环的关键.
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:
- 作为水性双离子电池 (ADIB) 中物种的宿主材料,研究了二维合金属有机框架 (2D c-MOF).
- 它们的多孔结构,活性点和功能使它们适合提高电池性能.
研究的目的:
- 为了合成和描述基于三醇的新型二维c-MOFs (TPT-M-MOF,MCu,Zn).
- 研究富含的地点和金属中心对物种相互作用和ADIB性能的协同效应.
主要方法:
- 合成TPT-Cu-MOF和TPT-Zn-MOF. 这两种化合物
- 使用这些MOF作为宿主进行ADIB的电化学测试.
- 频谱表征和理论计算,以了解性能机制.
主要成果:
- 与TPT-Cu-MOF相比,TPT-Zn-MOF表现出更高的特定容量 (435mAhg-1在1Ag-1上) 和稳定性 (1000个周期在5Ag-1上).
- 富含N的地点和[MO4]中心之间的协同相互作用对于提高I3−物种的性能至关重要.
- 电池性能与富含的骨架和协调的金属中心有很强的相关性.
结论:
- 富含的二维c-MOF的合理设计是开发物种先进宿主材料的有希望的策略.
- 这些发现为下一代ADIB铺平了道路,这些ADIB具有改进的储能能力.
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