Advancing Electrically Conductive Metal–Organic Frameworks for Photocatalytic Energy Conversion

作者：Xiaoyu Fang, Ji Yong Choi, Michael Stodolka, Hoai T. B. Pham, Jihye Park · 发表于：Accounts of Chemical Research · 年份：2024 · DOI：10.1021/acs.accounts.4c00280 · 被引用次数：74 · 研究领域：Metal-Organic Frameworks: Synthesis and Applications、Advanced Photocatalysis Techniques、Covalent Organic Framework Applications

ConspectusPhotocatalytic energy conversion is a pivotal process for harnessing solar energy to produce chemicals and presents a sustainable alternative to fossil fuels. Key strategies to enhance photocatalytic efficiency include facilitating mass transport and reactant adsorption, improving light absorption, and promoting electron and hole separation to suppress electron-hole recombination. This Account delves into the potential advantages of electrically conductive metal-organic frameworks (EC-MOFs) in photocatalytic energy conversion and examines how manipulating electronic structures and controlling morphology and defects affect their unique properties, potentially impacting photocatalytic efficiency and selectivity. Moreover, with a proof-of-concept study of photocatalytic hydrogen peroxide production by manipulating the EC-MOF's electronic structure, we highlight the potential of the strategies outlined in this Account.EC-MOFs not only possess porosity and surface areas like conventional MOFs, but exhibit electronic conductivity through d-p conjugation between ligands and metal nodes, enabling effective charge transport. Their narrow band gaps also allow for visible light absorption, making them promising candidates for efficient photocatalysts. In EC-MOFs, the modular design of metal nodes and ligands allows fine-tuning of both the electronic structure and physical properties, including controlling the particle morphology, which is essential for optimizing band position...