Determining Roles of Cu<sup>0</sup> in the Chemosynthesis of Diols via Condensed Diester Hydrogenation on Cu/SiO<sub>2</sub> Catalyst
Weichao Wang, Hui Wang, Jingwei Zhang, Lingxin Kong, Huijiang Huang, Wei Liu, Shengping Wang, Xinbin Ma, Yujun Zhao
Abstract
Abstract Copper‐based catalyst was applied in the condensed diester hydrogenation with unexpected high selectivity (∼100 %) to 1,6‐hexanediol. On basis of the mass transfer analysis and kinetics results, the reaction rate of the condensed diester hydrogenation was deduced to be controlled by the activation of hydrogen on Cu 0 sites, which was further demonstrated by the correlations between the catalytic activity and different copper species. Importantly, this catalysis mechanism is different with that of gas‐phase diester hydrogenation, which is generally determined by the adsorption of ester on Cu + species.
Topics & Concepts
CatalysisChemistryCopperSelectivityAdsorptionHydrogenKineticsReaction mechanismInorganic chemistryPhysical chemistryOrganic chemistryQuantum mechanicsPhysicsCatalysts for Methane ReformingCatalysis for Biomass ConversionAsymmetric Hydrogenation and Catalysis