Biswas Aritra, Lemcoff Nir, Shelonchik Ofir, Baranov Mark, Gordon Gil, Ben Nun Uri, Weizmann Yossi
Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
Ilse Katz Institute for Nanotechnology Science, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
Nat Commun. 2025 Mar 20;16(1):2758. doi: 10.1038/s41467-025-57933-0.
Temperature is a fundamental parameter in any chemical process, affecting reaction rates, selectivity and more. In this regard, photon-assisted heat generation for chemical reactions utilizing photothermal materials is emerging as an exciting tool for innovative research. Herein, we develop a synthesis and in-situ assembly strategy for metal-organic frameworks (MOFs) based on the distinct heating of photothermal materials under visible light. A simple cobalt chloride molecular complex is utilized as an efficient and stable light-to-heat converter for initial MOF formation. A thorough investigation of the assembly mechanism reveals the key role photothermal conversion has in the synthesis of the superstructures. Finally, palladium nanoparticles (PdNPs) are utilized as competing photothermal agents (PTAs) shedding light on the dynamics between different heat sources within a reaction and resulting in MOF-NP composites. This work highlights the versatility of the photothermal approach in the synthesis of advanced materials introducing a promising route to the micro/nano assembly of different materials.
温度是任何化学过程中的一个基本参数，影响反应速率、选择性等。在这方面，利用光热材料进行化学反应的光子辅助热生成正成为创新研究中一种令人兴奋的工具。在此，我们基于光热材料在可见光下的独特加热，开发了一种用于金属有机框架（MOF）的合成及原位组装策略。一种简单的氯化钴分子络合物被用作高效且稳定的光热转换器以进行初始MOF的形成。对组装机制的深入研究揭示了光热转换在超结构合成中的关键作用。最后，钯纳米颗粒（PdNP）被用作竞争性光热剂（PTA），揭示了反应中不同热源之间的动力学，并由此得到MOF-NP复合材料。这项工作突出了光热方法在先进材料合成中的多功能性，为不同材料的微/纳米组装引入了一条有前景的途径。
