Preparation, characterization, and catalytic performance of Ta-HMS mesoporous molecular sieve
- Autores: Li X.1, Zhang L.1, Gao H.2, Chen Q.2
-
Afiliações:
- School of Chemistry and Chemical Engineering of Xuchang University
- Shanghai Research Institute of Petrochemical Technology
- Edição: Volume 90, Nº 8 (2016)
- Páginas: 1545-1551
- Seção: Chemical Kinetics and Catalysis
- URL: https://journals.rcsi.science/0036-0244/article/view/168560
- DOI: https://doi.org/10.1134/S003602441608032X
- ID: 168560
Citar
Resumo
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.
Palavras-chave
Sobre autores
Xuefeng Li
School of Chemistry and Chemical Engineering of Xuchang University
Autor responsável pela correspondência
Email: snow_mount@163.com
República Popular da China, Xuchang, 461000
Like Zhang
School of Chemistry and Chemical Engineering of Xuchang University
Email: snow_mount@163.com
República Popular da China, Xuchang, 461000
Huanxin Gao
Shanghai Research Institute of Petrochemical Technology
Email: snow_mount@163.com
República Popular da China, Shanghai, 201208
Qingling Chen
Shanghai Research Institute of Petrochemical Technology
Email: snow_mount@163.com
República Popular da China, Shanghai, 201208