A NEW APPROACH IN THE MECHANISM FOR THE ACETALIZATION OF BENZALDEHYDE OVER MOFs CATALYSTS

Abstract

The benzaldehyde acetalization reaction catalyzed by UiO-66, and its fluorinated analog UiO-66F, were carried out in a batchtype reactor at room temperature and atmospheric pressure, the full kinetic study was performed, using the LangmuirHinshelwood and Eley-Rideal model. It was established that the Eley-Rideal model is the one that best fits the experimentaldata. The catalytic results indicated that both MOFs carry out the acetalization reaction. However, UiO-66F has the highestactivity, which could be attributed to its high acidity. Both structures were characterized by N2 physisorption,thermogravimetry, powder X-Ray diffraction, potentiometric titrations, and infrared spectroscopy. The highest aciditydisplayed by UiO-66F was explained by DFT studies and experimental studies