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Effects of the Framework and Mesoporosity on the Catalytic Activity of Hierarchical Zeolite Catalysts in Benzyl Alcohol Conversion
Author(s) -
Li Chao,
Cho Hong Je,
Wang Zhuopeng,
Gou Jinsheng,
Ren Yanqun,
Xi Hongxia,
Fan Wei
Publication year - 2016
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201600322
Subject(s) - mesitylene , catalysis , benzyl alcohol , zeolite , mesoporous material , microporous material , alkylation , selectivity , chemistry , heterogeneous catalysis , organic chemistry , materials science
The catalytic performance of three‐dimensionally ordered mesoporous imprinted (3DOm‐i) zeolite catalysts with different frameworks (3DOm‐i MFI, 3DOm‐i BEA, and 3DOm‐i LTA) were investigated by the liquid‐phase catalytic conversion of benzyl alcohol in mesitylene and compared to that of other microporous and mesoporous catalysts with a high external surface area, which included MCM‐22, 300 nm MFI, ITQ‐2, and Al‐MCM‐41. The mesoporosity in MFI and BEA zeolites can effectively enhance the catalytic performance of the zeolite catalysts for benzyl alcohol self‐etherification catalyzed by both the acid sites on the external and internal surface and the alkylation of mesitylene with benzyl alcohol catalyzed exclusively by the acid sites on the external surface. For 3DOm‐i LTA, MCM‐22, and Al‐MCM‐41, only the acid sites on the external surface can be utilized in the catalytic reactions. A distinct difference in the product selectivity was also observed for the microporous and mesoporous catalysts.