Open AccessPreparation of the WOX/MCM-41 Solid Acid Catalyst and the Catalytic Performance for Solketal Synthesis
Author(s) -
Yixuan Huang,
Guangcai Zhang,
Qinhui Zhang
Publication year - 2021
Publication title -
acs omega
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.779
H-Index - 40
ISSN - 2470-1343
DOI - 10.1021/acsomega.0c05671
Subject(s) - catalysis , calcination , chemistry , desorption , thermal desorption spectroscopy , mcm 41 , yield (engineering) , dispersity , x ray photoelectron spectroscopy , acetone , nuclear chemistry , adsorption , heterogeneous catalysis , inorganic chemistry , organic chemistry , molecular sieve , materials science , chemical engineering , engineering , metallurgy
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, H 2 temperature-programmed reduction, X-ray photoelectron spectroscopy, NH 3 temperature-programmed desorption, and N 2 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.