ZSM-5 (core)/SAPO-11 (shell) composite molecular sieve was synthesized by the hydrothermal method in order to combine the advantages of ZSM-5 and SAPO-11 materials for the methylation of naphthalene with methanol. For comparison, the catalytic performance of mechanical mixture of ZSM-5 and SAPO-11 was also evaluated. The characterization results proved that ZSM-5/SAPO-11 composite has a core-shell structure. The pore size of the composite was between that of ZSM-5 and SAPO-11. The composite had fewer acid sites than ZSM-5 and mechanical mixture, but more acid sites than SAPO-11. The experimental results indicated that the composite exhibited good catalytic performance in the methylation of naphthalene with methanol.
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The work was supported by the National Science Foundation of Shanxi Province, China (201601D102011), the National Science Foundation for Young Scientists of Shanxi Province, China (2015021042) and the National Science Foundation for Young Scientists of Shanxi Province, China (201601D202016).
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Xiaoxiao Wang, Guo, F., Wei, X. et al. RETRACTED ARTICLE: Study on Methylation of Naphthalene with Methanol over ZSM-5 (core)/SAPO-11(shell) Composite Molecular Sieve. Russ. J. Phys. Chem. 93, 431–436 (2019). https://doi.org/10.1134/S0036024419030269
- methylation of naphthalene with methanol