期刊
ACS APPLIED MATERIALS & INTERFACES
卷 13, 期 33, 页码 39363-39370出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.1c09944
关键词
SO2 capture; MOFs; breathing; adsorption measurements; molecular modeling
资金
- PAPIIT-UNAM, Mexico [IN202820]
- CONACyT [733072, 766200]
Metal-organic frameworks MIL-53(Al)-TDC and MIL-53(Al)-BDC were found to exhibit different characteristics in the SO2 adsorption process, both serving as exceptional candidates for SO2 capture with good performance and chemical stability. These two materials also have potential interest in SO2 sensing and storage/transportation applications.
Metal-organic frameworks MIL-53(Al)-TDC and MIL-53(Al)-BDC were explored in the SO2 adsorption process. MIL-53(Al)-TDC was shown to behave as a rigid-like material upon SO2 adsorption. On the other hand, MIL-53(Al)-BDC exhibits guest-induced flexibility of the framework with the presence of multiple steps in the SO2 adsorption isotherm that was related through molecular simulations to the existence of three different pore opening phases narrow pore, intermediate pore, and large pore. Both materials proved to be exceptional candidates for SO2 capture, even under wet conditions, with excellent SO2 adsorption, good cycling, chemical stability, and easy regeneration. Further, we propose MIL-53(Al)-TDC and MIL-53(A)-BDC of potential interest for SO2 sensing and SO2 storage/transportation, respectively.
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