title: Ni-Cu Hydrotalcite-Derived Mixed Oxides as Highly Selective and Stable Catalysts for the Synthesis of β-Branched Bioalcohols by the Guerbet Reaction.
abstract: 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 Ni2+species under reaction conditions, favoring the hydrogen transfer and hydrogenation capacity of the catalyst system. Catalytic results are reported for C8, mixed C8/C10, and C18alcohol feeds, with full conversions and Guerbet product purities of 72.5-96 %.
authors.affiliation: Center for Ordered Materials, Organometallics and Catalysis (COMOC), Department of Inorganic and Physical Chemistry, Ghent University, Krijgslaan 281-S3, 9000, Ghent, Belgium.
authors.forename: Willinton Y
authors.initials: WY
authors.lastname: Hernández
authors.affiliation: 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.
authors.forename: Kevin
authors.initials: K
authors.lastname: De Vlieger
authors.affiliation: Center for Ordered Materials, Organometallics and Catalysis (COMOC), Department of Inorganic and Physical Chemistry, Ghent University, Krijgslaan 281-S3, 9000, Ghent, Belgium.
authors.forename: Pascal
authors.initials: P
authors.lastname: Van Der Voort
authors.affiliation: Industrial Catalysis and Adsorption Technology (INCAT), Department of Chemical Engineering and Technical Chemistry, Ghent University, Valentin Vaerwyckweg 1, 9000, Ghent, Belgium.
authors.forename: An
authors.identifier: 0000-0003-2309-4874
authors.initials: A
authors.lastname: Verberckmoes
mesh_terms: D000438:Alcohols / Q000138:chemical synthesis* / Q000737:chemistry*; D000536:Aluminum Hydroxide / Q000737:chemistry*; D002384:Catalysis; D060326:Chemistry Techniques, Synthetic; D003300:Copper / Q000737:chemistry*; D019281:Dimerization; D004355:Drug Stability; D008276:Magnesium Hydroxide / Q000737:chemistry*; D009532:Nickel / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry*
chemical_list: D000438:Alcohols; D010087:Oxides; C010467:hydrotalcite; D000536:Aluminum Hydroxide; D003300:Copper; D009532:Nickel; D008276:Magnesium Hydroxide
keywords: Guerbet reaction; alcohols; heterogeneous catalyis; layered double hydroxides; mixed metal oxides