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微波和溶剂交换协同激活的Ni-MOFs 阳极材料在离子电池中实现辅助反应动力学

Danlin Sun¹, Wenfeng Yuan¹, Dongyang Zhang^1,2

¹Jiangxi Provincial Key Laboratory of Power Batteries & Energy Storage Materials, School of Materials Science and Engineering, Jiangxi University of Sciences and Technology, Ganzhou, 341000, China.

|November 28, 2025

概括

使用溶剂或微波炉激活PTCDA-Ni金属有机框架 (MOF),可以显著提高它们作为离子电池 (LIB) 的阳极材料的性能. 激活的MOF显示出更好的容量保留和离子移动性.

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:

金属有机框架 (MOF) 为储能应用提供可调节的性能.
一种分层MOF的PTCDA-Ni是离子电池 (LIB) 中阳极材料的潜在候选者.
激活策略对于通过修改孔隙结构和活性位点来优化MOF性能至关重要.

研究的目的:

研究不同激活方法对PTCDA-Ni.的电化学特性的影响.
为了提高PTCDA-Ni在LIB应用中的特定表面积,孔径和电化学性能.
探索用于设计高性能阳极材料的新型激活策略.

主要方法:

通过协调反应合成PTCDA-Ni MOF.
使用三甲 (TCM),乙 (AC) 激活PTCDA-Ni,并与AC和微波 (AC&Mw) 进行联合激活.
电化学表征包括循环电压测量 (CV),静电间歇定位 (GITT) 和循环性能测试.

主要成果:

与未激活的PTCDA-Ni相比,激活的PTCDA-Ni材料 (PTCDA-Ni@TCM,PTCDA-Ni@AC,PTCDA-Ni@AC&Mw) 显示出增强的特定表面积和优化的孔隙结构.
激活减少了客分子含量,暴露了更多的活性部位并改善了电化学特性.
在0.1A·g-1的200个周期后,容量保留显著改善,从未激活的PTCDA-Ni的60.8%提高到92.1% (PTCDA-Ni@TCM) 和96.9% (PTCDA-Ni@AC,PTCDA-Ni@AC&Mw).

结论:

溶剂交换和微波辅助激活是增强LIB阳极的PTCDA-Ni MOF的有效策略.
激活改善了离子迁移速率和整体电化学性能.
这项工作为设计高性能LIB的先进阳极材料提供了一种新方法.

关键词:

激活方式激活方式离子电池 (LIB) 是一种金属有机框架 (MOFs) 是一种金属有机框架.有机电极有机电极是有机电极.烯-3,4,9,10-四碳酸二化 (PTCDA) 是一种

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