Imparting Functionality and Enhanced Surface Area to a 2D Electrically Conductive MOF via Macrocyclic Linker

作者：Hoai T. B. Pham, Ji Yong Choi, Shaofeng Huang, Xubo Wang, Adam Claman, Michael Stodolka, Sadegh Yazdi, Sandeep Sharma, Wei Zhang, Jihye Park · 发表于：Journal of the American Chemical Society · 年份：2022 · DOI：10.1021/jacs.2c03793 · 被引用次数：142 · 研究领域：Metal-Organic Frameworks: Synthesis and Applications、MXene and MAX Phase Materials、2D Materials and Applications

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-hexahydroxyltribenzocyclyne (HHTC) linker and Cu nodes, featuring a large surface area. The MOF exhibits an electrical conductivity up to 3.02 × 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., Ni 2+, Co 2+ ). 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.