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Template-Free Synthesis of Hierarchical Porous Metal–Organic Frameworks

2013; American Chemical Society; Volume: 135; Issue: 26 Linguagem: Inglês

10.1021/ja402694f

1943-2984

Yan‐Feng Yue, Zhen‐An Qiao, Pasquale F. Fulvio, Andrew Binder, Chengcheng Tian, Jihua Chen, Kimberly M. Nelson, Xiang Zhu, Sheng Dai,

X-ray Diffraction in Crystallography

A template-free synthesis of a hierarchical microporous-mesoporous metal-organic framework (MOF) of zinc(II) 2,5-dihydroxy-1,4-benzenedicarboxylate (Zn-MOF-74) is reported. The surface morphology and porosity of the bimodal materials can be modified by etching the pore walls with various synthesis solvents for different reaction times. This template-free strategy enables the preparation of stable frameworks with mesopores exceeding 15 nm, which was previously unattained in the synthesis of MOFs by the ligand-extension method.