Preparation of the WO X /MCM-41 Solid Acid Catalyst and the Catalytic Performance for Solketal Synthesis

Yixuan Huang; Guangcai Zhang; Qinhui Zhang

doi:10.1021/acsomega.0c05671

Preparation of the WO _X /MCM-41 Solid Acid Catalyst and the Catalytic Performance for Solketal Synthesis

ACS Omega. 2021 Jan 30;6(5):3875-3883. doi: 10.1021/acsomega.0c05671. eCollection 2021 Feb 9.

Authors

Yixuan Huang¹, Guangcai Zhang¹, Qinhui Zhang¹

Affiliation

¹ Fujian Provincial University Engineering Research Center of Industrial Biocatalysis, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, P. R. China.

Abstract

In the present work, an efficient and stable WO _X /MCM-41 solid acid catalyst was prepared by the wet impregnation method. The characterization of powder X-ray diffraction, transmission electron microscopy, ultraviolet-visible, H₂ temperature-programmed reduction, X-ray photoelectron spectroscopy, NH₃ temperature-programmed desorption, and N₂ adsorption-desorption isotherms confirmed that the impregnation amount and calcination temperature of WO _X speciation affected the dispersity and acidity of the resulting catalyst. This WO _X /MCM-41 solid acid catalyst was subsequently applied in the ketalization reaction of glycerol and acetone to produce solketal. By catalyst screening and reaction condition optimization, WO _X /MCM-41 obtained by impregnating 20 wt % and calcining at 350 °C exhibited the highest solketal yield and catalytic stability.