Xie, Yonger; Biliškov, Nikola; Titi, Hatem M. (2024) Vibrational dynamics as an essential determinant of the thermal stability of zinc zeolitic imidazolate lattices. Physical Chemistry Chemical Physics, 26 (6). pp. 5408-5413. ISSN 1463-9076
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Abstract
Thermal stability and kinetics of zeolitic imidazolate frameworks (ZIFs) are crucial for their applications as energetic materials. Here, the effect of microscopic vibrational dynamics on the thermal stability of ZIFs is demonstrated by using simple tools. Specifically, we explored the thermal kinetics based on Flynn–Wall–Ozawa and Kissinger's methods. The study comprises a combination of structure-related effects such as topology, density, and alkyl substitution with respect to vibrational dynamics in ZIFs. The results exhibit a linear correlation between the vibrational dynamics of the linkers and activation energy, I.E. stabilization of ZIFs, in the polymorphic Zn(EtIm)2 series. At the same time, thermal destabilization was observed with the growing alkyl chain and was further probed by IR spectroscopy.
| Item Type: | Article | ||||||||
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| Uncontrolled Keywords: | thermal analysis; infrared spectroscopy; metal organic frameworks; zeolitic imidazolate frameworks | ||||||||
| Subjects: | NATURAL SCIENCES > Chemistry > Physical Chemistry | ||||||||
| Divisions: | Division of Materials Chemistry | ||||||||
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| Depositing User: | Nikola Biliškov | ||||||||
| Date Deposited: | 29 Jul 2024 11:47 | ||||||||
| URI: | http://fulir.irb.hr/id/eprint/8948 | ||||||||
| DOI: | 10.1039/d3cp05367a |
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