Influencing the Product Distribution in Citral Hydrogenation Using Ionic Liquid Modified Cu Catalysts

Naicker L, Schörner M, Kremitzl D, Friedrich HB, Haumann M, Wasserscheid P (2022)

Publication Type: Journal article

Publication year: 2022

Journal

DOI: 10.1002/cctc.202200388

Abstract

This work shows the effect of selected ionic liquids on the catalytic performance of a Cu/Al2O3 catalyst towards citral hydrogenation. The Cu/Al2O3 was prepared using a combination of wet impregnation and strong electrostatic interaction technique. The catalyst was coated with three ionic liquids, namely: [C4C1Pyrr][OTf], [C2C1C1Im][NTf2], and [C2C1Im][NTf2] resulting in Cu-based SCILL catalysts (solid catalyst with an ionic liquid layer). The fresh and used SCILL catalysts were characterized using FT-IR spectroscopy and thermal gravimetric analysis. All Cu-SCILL catalysts were stable throughout the liquid-phase reactions with no leaching of ionic liquid being detectable by means of TGA. All ionic liquids investigated prevented the formation of undesired isopulegol compared to the 30 % isopulegol selectivity obtained over the bare Cu/Al2O3 catalyst. The Cu-SCILL (coated with 15 wt% [C2C1Im][NTf2]) increased the selectivity towards geraniol and nerol by 340 %.

Authors with CRIS profile

Involved external institutions

University of KwaZulu-Natal (UKZN) South Africa (ZA)

How to cite

APA:

Naicker, L., Schörner, M., Kremitzl, D., Friedrich, H.B., Haumann, M., & Wasserscheid, P. (2022). Influencing the Product Distribution in Citral Hydrogenation Using Ionic Liquid Modified Cu Catalysts. ChemCatChem. https://dx.doi.org/10.1002/cctc.202200388

MLA:

Naicker, Letisha, et al. "Influencing the Product Distribution in Citral Hydrogenation Using Ionic Liquid Modified Cu Catalysts." ChemCatChem (2022).

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