Catalytic evaluation of MOF-808 with metallic centers of Zr(<scp>iv</scp>), Hf(<scp>iv</scp>) and Ce(<scp>iv</scp>) in the acetalization of benzaldehyde with methanol

Abstract

adsorption and desorption, FT-IR spectroscopy, acid-base potentiometric titration, XPS and thermogravimetric analysis. The results of the catalysis indicate that the MOF with the best performance was MOF-808-Ce, which achieved conversions greater than 80% in a period of ten minutes. MOF-808-Ce exhibits a higher number of defects and therefore a higher availability of catalytic sites for the reaction to occur, which explains the better performance. Finally, the performance of MOF-808 in the acetalization of benzaldehyde with methanol was also supported by density functional theory (DFT) calculations.

Topics & Concepts