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Issue 20, 2017, Issue in Progress
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Synthesis, characterization and performance of bifunctional catalysts for the synthesis of menthol from citronellal

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Abstract

The synthesis of a series of bifunctional catalysts (1 wt% Pt/W-TUD-1 (Technische Universiteit Delft-1) and 1 wt% Pt/WO3/TUD-1) with different tungsten loadings (5–30 wt% WO3) is described. They were characterized using ICP-OES, INAA, N2 physisorption, XRD and TEM. Their catalytic performance (activity and selectivity) was evaluated in the two-step catalytic synthesis of menthol from citronellal using kinetic analysis. Introducing tungsten during the TUD-1 synthesis results in a high WO3 dispersion, essential for the acidity of the catalyst. High tungsten dispersion is also critical for the Pt hydrogenation activity. Therefore, high dispersion combined with optimal tungsten loading resulted in the highest catalytic activity. The best performing catalyst was 1 wt% Pt/W-TUD-1 (silicon to tungsten ratio of 30), with the highest yields of menthol (96%).

Graphical abstract: Synthesis, characterization and performance of bifunctional catalysts for the synthesis of menthol from citronellal

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Supplementary files

Article information


Submitted
27 Oct 2016
Accepted
09 Feb 2017
First published
20 Feb 2017

This article is Open Access

RSC Adv., 2017,7, 12041-12053
Article type
Paper

Synthesis, characterization and performance of bifunctional catalysts for the synthesis of menthol from citronellal

J. T. Dam, A. Ramanathan, K. Djanashvili, F. Kapteijn and U. Hanefeld, RSC Adv., 2017, 7, 12041
DOI: 10.1039/C6RA25931F

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