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

• Published in: Journal of the American Chemical Society Vol. 144; no. 23; pp. 10615 - 10621
• Main Authors: Pham, Hoai T. B., Choi, Ji Yong, Huang, Shaofeng, Wang, Xubo, Claman, Adam, Stodolka, Michael, Yazdi, Sadegh, Sharma, Sandeep, Zhang, Wei, Park, Jihye
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 15.06.2022
• ISSN: 0002-7863; 1520-5126
• DOI: 10.1021/jacs.2c03793

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 m2/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.