We report the production of ultrafine rare earth metal oxide nanoparticles from metal–organic frameworks (MOFs) using lasers, exemplified by the conversion of three Tb-MOFs composed of three different linkers, such as C4H4O4 (H2Fum), C27H18O6 (H3BTB), and C24H15O6N3 (H3TATB). The size of the resulting terbium oxide nanoparticles is precisely controlled from 3 to 12 nm with a narrow distribution, which was challenging to be obtained by other methods. Two types of Tb2O3 crystals are observed, including the stable cubic structure and the metastable monoclinic structure. Among these rare earth metal oxide nanoparticles, the monoclinic Tb2O3 converted from Tb-MOF-TATB with mesopores perform the best in oxygen evolution reactions, exhibiting an overpotential of 331 mV.

中文翻译：

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MOF 到稀土金属氧化物纳米粒子的激光驱动转化

我们报告了使用激光从金属有机框架 (MOF) 生产超细稀土金属氧化物纳米粒子，例如由三种不同连接体组成的三种 Tb-MOF 的转化，例如 C4个H4个欧4个（H2个烟），C27H18欧6个（H3个BTB）和 C24H15欧6个否3个（H3个TATB）。所得氧化铽纳米颗粒的尺寸精确控制在 3 至 12 nm 之间，分布较窄，这是其他方法难以获得的。两种类型的结核病2个欧3个观察到晶体，包括稳定的立方结构和亚稳单斜结构。在这些稀土金属氧化物纳米颗粒中，单斜晶系的 Tb2个欧3个由具有中孔的 Tb-MOF-TATB 转化而来的材料在析氧反应中表现最好，表现出 331 mV 的过电势。