Imparting Functionality and Enhanced Surface Area to a 2D Electrically Conductive MOF via Macrocyclic Linker
Imparting Functionality and Enhanced Surface Area to a 2D Electrically Conductive MOF via Macrocyclic Linker
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DOI：
10.1021/jacs.2c03793
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发表时间：
2022-06-15
影响因子：
15
通讯作者：
Park, Jihye
中科院分区：
文献类型：
--
作者：
Pham, Hoai T. B.;Choi, Ji Yong;Park, Jihye
二维导电金属 - 有机框架（EC - MOFs）的发展极大地将MOFs的应用范围扩展到了储能、电催化和传感器领域。尽管人们对EC - MOFs的兴趣日益增长，但由于可用的配体基序有限，它们往往表现出较低的表面积且缺乏功能性。在此，我们展示了一种使用2,3,8,9,14,15 - 六羟基 - 三苯并环炔（HHTC）连接体和铜节点的新型EC - MOF，其具有较大的表面积。该MOF的电导率高达3.02×10⁻³ S/cm，表面积高达1196 m²/g，这对于二维EC - MOFs来说是前所未有的高值。我们还通过后合成负载杂金属离子（例如，Ni²⁺，Co²⁺）展示了框架中炔烃官能团的利用。此外，我们研究了粒径的可调性，这有助于研究尺寸 - 性能关系。我们相信这些结果不仅有助于扩充EC - MOFs的种类，还为探索电子应用带来了新的机遇。
The development of 2D electrically conductive metal-organic frameworks (EC-MOFs) has significantly expanded the scope of MOFs' applications into energy storage, electrocatalysis, and sensors. Despite growing interest in EC-MOFs, they often show low surface area and lack functionality due to the limited ligand motifs available. Herein we present a new EC-MOF using 2,3,8,9,14,15-hexahydroxyl-tribenzocyclyne (HHTC) linker and Cu nodes, featuring a large surface area. The MOF exhibits an electrical conductivity up to 3.02 x 10(-3) S, cm and a surface area up to 1196 m(2)/g, unprecedentedly high for 2D EC-MOFs. We also demonstrate the utilization of alkyne functionality in the framework by postsynthetically hosting heterometal ions (e.g., Ni2+, Co2+). Additionally, we investigated particle size tunability, facilitating the study of size-property relationships. We believe that these results not only contribute to expanding the library of EC-MOFs but shed light on the new opportunities to explore electronic applications.