Preparation, characterization, and catalytic performance of Ta-HMS mesoporous molecular sieve
- Authors: Li X.1, Zhang L.1, Gao H.2, Chen Q.2
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Affiliations:
- School of Chemistry and Chemical Engineering of Xuchang University
- Shanghai Research Institute of Petrochemical Technology
- Issue: Vol 90, No 8 (2016)
- Pages: 1545-1551
- Section: Chemical Kinetics and Catalysis
- URL: https://journals.rcsi.science/0036-0244/article/view/168560
- DOI: https://doi.org/10.1134/S003602441608032X
- ID: 168560
Cite item
Abstract
Various Ta-HMS (hexagonal mesoporous silica) samples with different Ta content were hydrothermally prepared and characterized by XRD, N2-adsorption, ICP-AES, FTIR, and UV–Vis spectroscopy. The catalytic performance of the samples was also evaluated in the epoxidation of cyclohexene with cumene hydroperoxide as oxidant. The regularity of mesoporous structure decreases while more extraframe Ta ions are formed with increasing the Ta content. Ta-HMS with Ta/Si ratio of 0.015 shows the highest conversion and selectivity in the studied epoxidation reaction. The catalyst can be used for three times without significant activity loss.
About the authors
Xuefeng Li
School of Chemistry and Chemical Engineering of Xuchang University
Author for correspondence.
Email: snow_mount@163.com
China, Xuchang, 461000
Like Zhang
School of Chemistry and Chemical Engineering of Xuchang University
Email: snow_mount@163.com
China, Xuchang, 461000
Huanxin Gao
Shanghai Research Institute of Petrochemical Technology
Email: snow_mount@163.com
China, Shanghai, 201208
Qingling Chen
Shanghai Research Institute of Petrochemical Technology
Email: snow_mount@163.com
China, Shanghai, 201208