title: Co3 O4 Nanoparticles Supported on Mesoporous Carbon for Selective Transfer Hydrogenation of α,β-Unsaturated Aldehydes.
abstract: A simple and scalable method for synthesizing Co3 O4 nanoparticles supported on the framework of mesoporous carbon (MC) was developed. Benefiting from an ion-exchange process during the preparation, the cobalt precursor is introduced into a mesostructured polymer framework that results in Co3 O4 nanoparticles (ca. 3 nm) supported on MC (Co3 O4 /MC) with narrow particle size distribution and homogeneous dispersion after simple reduction/pyrolysis and mild oxidation steps. The as-obtained Co3 O4 /MC is a highly efficient catalyst for transfer hydrogenation of α,β-unsaturated aldehydes. Selectivities towards unsaturated alcohols are always higher than 95 % at full conversion. In addition, the Co3 O4 /MC shows high stability under the reaction conditions, it can be recycled at least six times without loss of activity.
authors.affiliation: Max-Planck-Institut für Kohlenforschung, 45470, Mülheim an der Ruhr, Germany.
authors.forename: Guang-Hui
authors.initials: GH
authors.lastname: Wang
authors.affiliation: Max-Planck-Institut für Kohlenforschung, 45470, Mülheim an der Ruhr, Germany.
authors.forename: Xiaohui
authors.initials: X
authors.lastname: Deng
authors.affiliation: Max-Planck-Institut für Kohlenforschung, 45470, Mülheim an der Ruhr, Germany.
authors.forename: Dong
authors.initials: D
authors.lastname: Gu
authors.affiliation: Max-Planck-Institut für Kohlenforschung, 45470, Mülheim an der Ruhr, Germany.
authors.forename: Kun
authors.initials: K
authors.lastname: Chen
authors.affiliation: Max-Planck-Institut für Kohlenforschung, 45470, Mülheim an der Ruhr, Germany.
authors.forename: Harun
authors.initials: H
authors.lastname: Tüysüz
authors.affiliation: Max-Planck-Institut für Kohlenforschung, 45470, Mülheim an der Ruhr, Germany.
authors.forename: Bernd
authors.initials: B
authors.lastname: Spliethoff
authors.affiliation: Max-Planck-Institut für Kohlenforschung, 45470, Mülheim an der Ruhr, Germany.
authors.forename: Hans-Josef
authors.initials: HJ
authors.lastname: Bongard
authors.affiliation: Max-Planck-Institut für Kohlenforschung, 45470, Mülheim an der Ruhr, Germany.
authors.forename: Claudia
authors.initials: C
authors.lastname: Weidenthaler
authors.affiliation: Max-Planck-Institut für Kohlenforschung, 45470, Mülheim an der Ruhr, Germany.
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Schmidt
authors.affiliation: Max-Planck-Institut für Kohlenforschung, 45470, Mülheim an der Ruhr, Germany. schueth@mpi-muelheim.mpg.de.
authors.forename: Ferdi
authors.initials: F
authors.lastname: Schüth
keywords: aldehydes; hydrogen transfer; mesoporous carbon; nanoparticles; supported catalysts