Desorption of dimethylformamide from Zn 4 O(C 8 H 4 O 4 ) 3 framework
Department of Materials Science and Engineering
Both dimethylformamide (DMF) and diethylformamide (DEF) are important solvents for the synthesis of Zn 4 O(C 8 H 4 O 4 ) 3 framework (MOF-5). It is generally recognized that DMF molecules can be completely displaced by CH 2 Cl 2 during the synthesis of MOF-5. Herein, however, it was found that the DMF molecules inside the pores of the MOF-5 framework cannot be displaced by CH 2 Cl 2 . The desorption of the DMF molecules from the pores, which requires a temperature of 100 °C or above, is the first order with activation energy of 56.38 kJ/mol. In contrast, DEF molecules can be completely displaced by CH 2 Cl 2 during the synthesis of MOF-5, because DEF molecules cannot penetrate into the pores of the MOF-5 paste.
Applied Surface Science
Desorption of dimethylformamide from Zn 4 O(C 8 H 4 O 4 ) 3 framework.
Applied Surface Science,
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