Azo-functionalised metal-organic framework for charge storage in sodium-ion batteries.
Azo-functionalised metal-organic framework for charge storage in sodium-ion batteries.
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用于钠离子电池电荷存储的偶氮官能化金属有机框架。
DOI：
10.1039/d2cc06154f
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Desai AV
中科院分区：
文献类型：
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作者：
Desai AV
钠离子电池（nib）是一种新兴的有前途的储能设备。多孔固体，如金属有机框架（mof），非常适合作为涉及体积较大的载流子技术的电极材料。然而，使用原始mof取得的进展有限，主要是由于材料中缺乏氧化还原活性有机基团。在这项工作中，偶氮功能MOF，即UiO-abdc，被提出作为钠离子插入的电极化合物。MOF在150次循环中提供稳定的容量（~ 100 mA h g−1），循环后的表征验证了MOF的稳定性和偶氮基团在电荷存储中的参与。这项研究可以加速实现原始固体，如mof和其他多孔有机化合物，作为电池材料。
Sodium-ion batteries (NIBs) are emerging as promising devices for energy storage applications. Porous solids, such as metal–organic frameworks (MOFs), are well suited as electrode materials for technologies involving bulkier charge carriers. However, only limited progress has been made using pristine MOFs, primarily due to lack of redox-active organic groups in the materials. In this work a azo-functional MOF, namely UiO-abdc, is presented as an electrode compound for sodium-ion insertion. The MOF delivers a stable capacity (∼100 mA h g−1) over 150 cycles, and post-cycling characterisation validates the stability of the MOF and participation of the azo-group in charge storage. This study can accelerate the realisation of pristine solids, such as MOFs and other porous organic compounds, as battery materials.