Heat capacities and thermodynamic properties of a Zn-based zeolitic imidazolate framework.
- Resource Type
- Article
- Authors
- Liu, Shuang; Sun, Li-Xian; Zhou, Yan-Li; Liu, Lan-Tao
- Source
- Journal of Thermal Analysis & Calorimetry. Mar2019, Vol. 135 Issue 6, p3191-3196. 6p.
- Subject
- *HEAT capacity
*DIFFERENTIAL scanning calorimetry
- Language
- ISSN
- 1388-6150
The molar heat capacities of one-three-dimensional zeolitic imidazolate frameworks Zn(C4H6N2)2 (ZIF-8) were measured by temperature-modulated differential scanning calorimetry over the temperature range from 213 to 423 K for the first time. No phase transition or thermal anomaly was observed in the experimental temperature range. The fundamental thermodynamic parameters such as entropy and enthalpy relative to 298.15 K were calculated based on the experimentally determined molar heat capacities. The compound was characterized by powder XRD and FT-IR spectroscopy. Moreover, the thermal decomposition characteristics of ZIF-8 were investigated by thermogravimetry spectrometer (TG). [ABSTRACT FROM AUTHOR]