(521ct) Kinetic Analysis of Acetone Hydrogenation over Ptsn/SiO2

Biomass is an important renewable resource, and technologies for its utilization in the production of energy and chemicals has developed rapidly over the past two decades. Key needs in converting biochemicals into industrial commodities are removing oxygen atoms and reducing carbon atoms. One common reaction encountered in this space is the hydrogenation of carbonyl compounds—namely aldehydes and ketones—to form alcohols. This is typically performed on metal catalysts, such as Pt or Ru, in the presence of H2. The composition and structure of metal catalysts critically influences reaction rate and product selectivity. Pt is generally very active for carbonyl hydrogenation, and recent work shows that its performance can be enhanced by combining it with base, oxophilic metals, like Sn. Previously, we have reported detailed microkinetic analysis of acetone hydrogenation on Pt/SiO2, establishing the reaction mechanism and rate controlling steps. Here, we consider the kinetic and mechanistic impacts of adding Sn to Pt/SiO2 catalysts through a similar analysis of kinetic data.