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- W4311462085 abstract "Abstract Metal-organic framework (MOF) glasses are a new class of glass materials with immense potential for applications ranging from gas separation to optics and solid electrolytes. Due to the inherent difficulty to determine the atomistic structure of amorphous glasses, the intrinsic structural porosity of MOF glasses is only poorly understood. Here, we investigate the porosity features (pore size and pore limiting diameter) of a series of prototypical MOF glass formers from the family of zeolitic imidazolate frameworks (ZIFs) and their corresponding glasses. CO 2 sorption at 195 K allows quantifying the microporosity of these materials in their crystalline and glassy states, also providing excess to the micropore volume and the apparent density of the ZIF glasses. Additional hydrocarbon sorption data together with X-ray total scattering experiments prove that the porosity features of the ZIF glasses depend on the types of organic linkers. This allows formulating design principles for a targeted tuning of the intrinsic microporosity of MOF glasses. These principles are counterintuitive and contrary to those established for crystalline MOFs but show similarities to strategies previously developed for porous polymers." @default.
- W4311462085 created "2022-12-26" @default.
- W4311462085 creator A5003801052 @default.
- W4311462085 creator A5007511034 @default.
- W4311462085 creator A5025737188 @default.
- W4311462085 creator A5054736035 @default.
- W4311462085 creator A5091459081 @default.
- W4311462085 date "2022-12-14" @default.
- W4311462085 modified "2023-10-15" @default.
- W4311462085 title "Quantification of gas-accessible microporosity in metal-organic framework glasses" @default.
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