Ni-Cu Hydrotalcite-Derived Mixed Oxides as Highly Selective and Stable Catalysts for the Synthesis of β-Branched Bioalcohols by the Guerbet Reaction.

Autor: Hernández WY; Center for Ordered Materials, Organometallics and Catalysis (COMOC), Department of Inorganic and Physical Chemistry, Ghent University, Krijgslaan 281-S3, 9000, Ghent, Belgium., De Vlieger K; Center for Ordered Materials, Organometallics and Catalysis (COMOC), Department of Inorganic and Physical Chemistry, Ghent University, Krijgslaan 281-S3, 9000, Ghent, Belgium.; Industrial Catalysis and Adsorption Technology (INCAT), Department of Chemical Engineering and Technical Chemistry, Ghent University, Valentin Vaerwyckweg 1, 9000, Ghent, Belgium., Van Der Voort P; Center for Ordered Materials, Organometallics and Catalysis (COMOC), Department of Inorganic and Physical Chemistry, Ghent University, Krijgslaan 281-S3, 9000, Ghent, Belgium., Verberckmoes A; Industrial Catalysis and Adsorption Technology (INCAT), Department of Chemical Engineering and Technical Chemistry, Ghent University, Valentin Vaerwyckweg 1, 9000, Ghent, Belgium.
Jazyk: angličtina
Zdroj: ChemSusChem [ChemSusChem] 2016 Nov 23; Vol. 9 (22), pp. 3196-3205. Date of Electronic Publication: 2016 Oct 20.
DOI: 10.1002/cssc.201601042
Abstrakt: A series of Ni-Cu hydrotalcite-derived mixed oxides have been synthesized and evaluated as heterogeneous catalysts for the dimerization of linear aliphatic alcohols to afford β-branched Guerbet alcohols. The use of the hydrotalcite-structured catalyst precursor highly favors the catalyst stability. This Cu/Ni catalyst has an enhanced reducibility of Ni 2+ species under reaction conditions, favoring the hydrogen transfer and hydrogenation capacity of the catalyst system. Catalytic results are reported for C 8 , mixed C 8 /C 10 , and C 18 alcohol feeds, with full conversions and Guerbet product purities of 72.5-96 %.
(© 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.)
Databáze: MEDLINE