中国科学技术大学江海龙团队开发了基于种子介导的可扩展和低能合成金属有机框架的合成方法。相关研究成果于2025年1月7日发表在国际顶尖学术期刊《德国应用化学》。

通过低能量输入合成金属有机框架（MOFs）一直是实际应用的长期目标，但仍然是一个巨大的挑战。

该文中，研究人员通过简单地将种子引入反应体系，在低至50°C的温度下开发了一种低能MOF生长策略。MOFs在种子表面以比低温下传统溶剂热合成，高几十倍的生长速率连续生长，而所得MOFs具有与溶剂热种子相似的高结晶度、孔隙率和稳定性。

值得注意的是，所获得的MOFs具有路易斯酸性的高密度结构缺陷，从而在取代芳烃的碘化反应中显示出，比传统溶剂热法获得的MOFs高一个数量级以上的活性。这种低能耗的合成方法很容易扩大规模，这将是MOF行业梦想的重要一步。

附：英文原文

Title: Scalable and Low-energy Synthesis of Metal-organic Frameworks by a Seed-mediated Approach

Author: Wentao Han, Minghao Shi, Hai-Long Jiang

Issue&Volume: 2025-01-07

Abstract: The synthesis of metal-organic frameworks (MOFs) by low energy input has been a long-term target for practical applications yet remains a great challenge. Herein, we developed a low-energy MOF growth strategy at a temperature down to 50 °C by simply introducing seeds into the reaction system. The MOFs are continuously grown on the surface of the seeds at a growth rate dozens of times higher than that of conventional solvothermal synthesis at low temperature, while the resulting MOFs possess high crystallinity, porosity, and stability similar to solvothermal seeds. Remarkably, the obtained MOFs feature high-density structural defects with Lewis acidity, thereby displaying more than one order of magnitude higher activity than the MOFs obtained by the conventional solvothermal method in the iodination reaction of substituted arenes. This low-energy synthetic approach is readily scaled up, which would be a significant step forward in the dream of the MOF industry.

DOI: 10.1002/anie.202421942

Source: https://onlinelibrary.wiley.com/doi/10.1002/anie.202421942