PreprintArticleVersion 1This version is not peer-reviewed
Water Sorption Properties and Hydrothermal Stability of Al-Containing Metal-Organic Frameworks Cau-10 and Mil-96 Studied Using Quasi-Equilbrated Thermodesorption
Version 1
: Received: 23 October 2024 / Approved: 23 October 2024 / Online: 24 October 2024 (11:49:15 CEST)
How to cite:
Makowski, W.; Gryta, P.; Jajko-Liberka, G.; Cieślik-Górna, M.; Korzeniowska, A. Water Sorption Properties and Hydrothermal Stability of Al-Containing Metal-Organic Frameworks Cau-10 and Mil-96 Studied Using Quasi-Equilbrated Thermodesorption. Preprints2024, 2024101866. https://doi.org/10.20944/preprints202410.1866.v1
Makowski, W.; Gryta, P.; Jajko-Liberka, G.; Cieślik-Górna, M.; Korzeniowska, A. Water Sorption Properties and Hydrothermal Stability of Al-Containing Metal-Organic Frameworks Cau-10 and Mil-96 Studied Using Quasi-Equilbrated Thermodesorption. Preprints 2024, 2024101866. https://doi.org/10.20944/preprints202410.1866.v1
Makowski, W.; Gryta, P.; Jajko-Liberka, G.; Cieślik-Górna, M.; Korzeniowska, A. Water Sorption Properties and Hydrothermal Stability of Al-Containing Metal-Organic Frameworks Cau-10 and Mil-96 Studied Using Quasi-Equilbrated Thermodesorption. Preprints2024, 2024101866. https://doi.org/10.20944/preprints202410.1866.v1
APA Style
Makowski, W., Gryta, P., Jajko-Liberka, G., Cieślik-Górna, M., & Korzeniowska, A. (2024). Water Sorption Properties and Hydrothermal Stability of Al-Containing Metal-Organic Frameworks Cau-10 and Mil-96 Studied Using Quasi-Equilbrated Thermodesorption. Preprints. https://doi.org/10.20944/preprints202410.1866.v1
Chicago/Turabian Style
Makowski, W., Monika Cieślik-Górna and Aleksandra Korzeniowska. 2024 "Water Sorption Properties and Hydrothermal Stability of Al-Containing Metal-Organic Frameworks Cau-10 and Mil-96 Studied Using Quasi-Equilbrated Thermodesorption" Preprints. https://doi.org/10.20944/preprints202410.1866.v1
Abstract
A novel experimental technique, quasi-equilibrated temperature-programmed desorption and adsorption (QE-TPDA) was used to study the water sorption properties and hydrothermal stability of aluminum trimesate MIL-96 and aluminum isophthalate CAU-10, which have been selected due to their remarkable sorption properties. The QE-TPDA profiles of water observed for MIL-96 and CAU-10 confirmed the hydrophilic nature of these materials. Complex QE-TPDA profiles indicate that water sorption in MIL-96 follows a three-step pore filling mechanism. The shape of single desorption peaks in the QE-TPDA profiles for CAU-10 confirms that water sorption involves a reversible phase transition. Based on the QE-TPDA profiles, the water adsorption heat were determined: 45-46 kJ/mol for CAU-10 and 43-56 kJ/mol for MIL-96, in the latter case depending on the adsorption extent. Hydrothermal stability tests revealed that MIL-96 retained its stable porosity-related sorption capacity for water after hydrothermal treatment up to 290°C. Gradual changes in the QE-TPDA profiles due to the hydrothermal treatment above 290°C, with decreasing the high-temperature desorption peak and increasing the low-temperature one, indicate minor structural changes occurring in this material. Only after 410° C treatment was fast degradation of MIL-96 observed. CAU-10 exhibited high and unchanged hydrothermal stability up to 400°C.
Chemistry and Materials Science, Materials Science and Technology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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