1. A novel mesoporous sulfated zirconium solid acid catalyst for Friedel-Crafts benzylation reaction.
- Author
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Miao, Zhichao, Zhou, Jin, Zhao, Jinping, Liu, Dandan, Bi, Xu, Chou, Lingjun, and Zhuo, Shuping
- Subjects
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MESOPOROUS materials , *SULFATION , *ZIRCONIUM , *FRIEDEL-Crafts reaction , *EVAPORATION (Chemistry) , *X-ray diffraction - Abstract
In this paper, a novel mesoporous sulfated zirconium (M-ZrO 2 /SO 4 2− ) has been gotten by one-pot evaporation-induced self-assembly (one-pot EISA) strategy. The SXRD, N 2 -physisorption and TEM characterization techniques indicated that M-ZrO 2 /SO 4 2− possessed distinct mesostructure with big specific surface area (133.5 m 2 g −1 ), large pore volume (0.18 cm 3 g −1 ) and narrow pore size distribution (4.90 nm). Moreover, the existing states and the influence in mesostructure of introduced S species were detailedly investigated by the XRD, N 2 -physisorption, TEM, TG-DSC, FT-IR and XPS techniques and the results showed that the S species, which existed as the type of SO 4 2− , improved the textural properties of prepared materials. In addition, the NH 3 -TPD and IR spectra of adsorbed pyridine indicated the existence of strong Brønsted and Lewis acid sites in M-ZrO 2 /SO 4 2− even evacuated at 400 °C. Furthermore, the M-ZrO 2 /SO 4 2− was used as a promise solid acid catalyst and displayed excellent catalytic performance and reusability in Friedel-Crafts benzylation reaction. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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