title: MOF-Derived Tungstated Zirconia as Strong Solid Acids toward High Catalytic Performance for Acetalization.
abstract: A strong solid acid, tungstated zirconia (WZ), has been prepared first using tungstate immobilized UiO-66 as precursors through a "double-solvent" impregnation method under mild calcination temperature. With moderate W contents, the as-synthesized WZ catalysts possess a high density of acid sites, and the proper heat treatment also has facilely led to a bunch of oligomeric tungsten clusters on stabilized tetragonal ZrO2. The resultant solid acids show an improved catalytic performance toward the benzaldehyde's acetalization in comparison with traditional zirconium hydroxide-prepared WZ. Notably, due to large surface area and additionally introduced strong acid sites, the MOF-derived WZ catalysts afforded conversion up to 86.0%. The facile method endows the WZ catalysts with superior catalytic activities and excellent recyclability, thus opening a new avenue for preparation of metal oxide-based solid superacids and superbases.
authors.affiliation: Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University , Gehu Road 1, Changzhou, Jiangsu 213164, People's Republic of China.|Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University , Gehu Road 1, Changzhou, Jiangsu 213164, People's Republic of China.
authors.forename: Peng
authors.initials: P
authors.lastname: Wang
authors.affiliation: Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University , Gehu Road 1, Changzhou, Jiangsu 213164, People's Republic of China.|Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University , Gehu Road 1, Changzhou, Jiangsu 213164, People's Republic of China.
authors.forename: Jian
authors.initials: J
authors.lastname: Feng
authors.affiliation: Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University , Gehu Road 1, Changzhou, Jiangsu 213164, People's Republic of China.|Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University , Gehu Road 1, Changzhou, Jiangsu 213164, People's Republic of China.
authors.forename: Yupei
authors.initials: Y
authors.lastname: Zhao
authors.affiliation: Department of Chemical Engineering, Curtin University , P. O. Box U1987, Perth, Western Australia 6845, Australia.
authors.forename: Shaobin
authors.initials: S
authors.lastname: Wang
authors.affiliation: Department of Chemical Engineering, Curtin University , P. O. Box U1987, Perth, Western Australia 6845, Australia.|Nanochemistry Research Institute, Curtin University , P. O. Box U1987, Perth, Western Australia 6845, Australia.
authors.forename: Jian
authors.initials: J
authors.lastname: Liu
keywords: UiO-66; acetalization; metal−organic frameworks; pyrolysis; strong solid acids; tungstated zirconia