Overall
- Language
- English
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
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Received July 27, 2025
Revised September 1, 2025
Accepted September 5, 2025
Available online January 25, 2026
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Most Cited
Controlled Thermal Pyrolysis for Optimizing the Stability and CO2 Adsorption Performance of Metal–Organic Frameworks Synthesized under Ambient Conditions
https://doi.org/10.1007/s11814-025-00559-1
Abstract
Zn-based metal–organic frameworks (Zn MOFs) synthesized under ambient conditions offer a scalable and energy-efficient
route to porous materials, but their poorer moisture stability compared to conventionally prepared MOFs limits their use
in gas adsorption. To overcome this limitation, thermal pyrolysis has emerged as an effective strategy to enhance structural
durability and tailor the pore structure of MOF-derived materials. In this study, a Zn-based pillared-layer MOF,[Zn2(BDC)2DABCO]n (ZnBD), was synthesized under ambient conditions and subsequently subjected to thermal pyrolysisunder an inert atmosphere at 500–700 °C. The resulting materials, denoted as ZnBD-T (T = pyrolysis temperature), were systematically characterized in terms of morphology, pore structure, surface functionality, and CO2 adsorption performance.
Among them, ZnBD-600 exhibited the highest CO2 uptake and CO2/N2 selectivity at 298 K. This superior performance is
attributed to the combined effects of abundant ultramicropores and high pyridinic nitrogen content, both of which enhance
CO2 affinity. Furthermore, ZnBD-600 not only demonstrated excellent stability but also outperformed the unpyrolyzed parent
ZnBD in CO2 adsorption capacity and selectivity. These results highlight that moderate-temperature pyrolysis offers a
simple and scalable route to transform unstable Zn MOFs into durable and high-performance CO2 adsorbents suitable for
practical applications.
