One-pot synthesis of menthol from citral over bifunctional Ni modified micro- and mesoporous molecular sieves

P. Mäki-Arvela*, N. Kumar, A. Nasir, T. Heikkilä, V.-P. Lehto, T. Salmi, D. Yu Murzin

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

In the current work menthol is synthesized in one-pot starting from citral over Ni modified bifunctional micro- and mesoporous molecular sieve catalysts. Ni modified microporous Beta and mesoporous MCM-41 molecular sieves were synthesized using an impregnation method. The catalysts were characterised using XRD, SEM, FTIR and nitrogen adsorption. 15 wt.% Ni-H-Beta catalyst exhibited the selectivity of 70% to four stereoisomers of menthols was achieved at 100% citral conversion. The second best catalyst was 15 wt.% Ni-H-MCM-41 exhibiting 67% selectivity to menthols, whereas below 1 % menthols were formed over Ni/Al2O3 catalysts. These results indicated the necessity of bifunctional catalysts in citral transformation to menthols.

Original languageEnglish
Pages (from-to)1311-1318
Number of pages8
JournalStudies in Surface Science and Catalysis
Volume158 B
DOIs
Publication statusPublished - 2005
MoE publication typeA1 Journal article-refereed

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