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13 - Electrical and Electronic Engineering, Metallurgy and Materials
University of Cambridge
Chemical structure, network topology, and porosity effects on the mechanical properties of zeolitic imidazolate frameworks
The zeolitic imidazolate frameworks (ZIFs) are an important class of metal-organic frameworks with structures related to aluminosilicate zeolites. They are noted for their excellent thermal and chemical stability and their capacity to adsorb CO2. This paper describes a comprehensive study of the anisotropic mechanical properties of ZIFs and reveals the way in which the Young’s modulus and hardness are influenced by factors such as the presence of adsorbed molecules in the channels and the solvent-accessible volume. In a second high-profile paper [Tan et al. Phys Rev Lett 108(2012)095502], we show that the ZIFs have remarkably low shear moduli.
