FitzGerald Laura I, Sutton Ashley L, Seeber Aaron J, Muir Benjamin W, Doherty Cara M
Manufacturing, CSIRO, Research Way, Clayton, Victoria 3168, Australia.
ACS Omega. 2025 Apr 29;10(18):19206-19213. doi: 10.1021/acsomega.5c02296. eCollection 2025 May 13.
Metal-organic frameworks (MOFs) are versatile materials, but their synthesis often requires harsh conditions, toxic precursors, or organic solvents. Recently, MOFs have been produced using resonant acoustic mixing (RAM), a form of mechanochemistry that provides a greener alternative to conventional methods. In this study, we demonstrate the solvent-free synthesis of fumarate-based MOFs using RAM at room temperature and atmospheric pressure. Iron fumarate (MIL-88A(Fe)) was successfully produced with a BET surface area of 209 m g, comparable to mechanochemical grinding. The synthesis was scaled up to a 10.5 g yield using RAM for 20 min and without solvent. Aluminum fumarate (MIL-53(Al)-FA) was also synthesized with a high surface area (790 m g), while attempts to synthesize the calcium fumarate MOF (CaFu) instead resulted in the non-porous coordination polymer, calcium fumarate trihydrate. These results demonstrate the potential of RAM as a more sustainable approach to MOF synthesis.
金属有机框架（MOF）是用途广泛的材料，但其合成通常需要苛刻的条件、有毒的前驱体或有机溶剂。最近，人们利用共振声学混合（RAM）制备出了MOF，这是一种机械化学形式，为传统方法提供了更绿色的替代方案。在本研究中，我们展示了在室温和大气压下使用RAM无溶剂合成富马酸酯基MOF。成功制备出了富马酸铁（MIL-88A(Fe)），其BET表面积为209 m²/g，与机械化学研磨法相当。使用RAM在无溶剂条件下反应20分钟，合成规模扩大至10.5 g产率。还合成出了具有高表面积（790 m²/g）的富马酸铝（MIL-53(Al)-FA），而尝试合成富马酸钙MOF（CaFu）时，得到的却是无孔配位聚合物三水合富马酸钙。这些结果证明了RAM作为一种更具可持续性的MOF合成方法的潜力。
