Wang, Jie; Yang, Weiyao; Wu, Cai; Gong, Yahui; Zhang, Jian; Shen, Chun published the artcile< Upgrading n-butanol to branched alcohols over Ni/CaxMgyO>, Application In Synthesis of 104-76-7, the main research area is upgrading butanol branched alc nickel calcium magnesium oxygen.
Despite the intensive development of heterogeneous catalysts with transition metal for the Guerbet reaction, a detailed understanding of the metal species and reaction mechanism (rate-determining step and active sites) is still deficient. Herein, we have developed a series of Ni/CaxMgyO catalysts to upgrade n-butanol into branched 2-ethyl-1-hexanol and establish the structure-activity correlation. Given the formation of solid solution between NiO and MgO, the addition of Mg element contributes to the formation of highly dispersed Ni nanoparticles with a small mean size. After optimization in reaction conditions, the highest conversion and selectivity of 80.2 and 79.1%, resp., were achieved at 240°C. The pivotal role of Ni0 sites and base sites during the Guerbet reaction, as confirmed by the selective poison experiments could be attributed to their synergistic catalysis during the dehydrogenation of n-butanol, which is the rate-determining step of the whole process. Moreover, a possible reaction mechanism for this rate-determining step over Ni/CaxMgyO catalysts was proposed based on exptl. results. Overall, this work pushes forward the understanding of the reaction mechanism of the Guerbet reaction over transition-metal-decorated catalysts, which would be constructive for the rational design of heterogeneous catalysts. Efficient upgrading of n-butanol to 2-ethyl-1-hexanol was achieved over Ni/CaxMgyO catalysts, and understanding about the reaction mechanism was pushed forward.
ACS Sustainable Chemistry & Engineering published new progress about Alcohols, branched Role: SPN (Synthetic Preparation), PREP (Preparation). 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, Application In Synthesis of 104-76-7.
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts