3 research outputs found
Acceptorless Dehydrogenative Coupling of Neat Alcohols Using Group VI Sulfide Catalysts
Group VI sulfides
were synthesized via coprecipitation of elemental
sulfur and metal hexacarbonyl and characterized with XRD, XPS, and
TEM. These materials were then demonstrated as active catalysts for
the acceptorless dehydrogenative coupling of neat ethanol to ethyl
acetate, rapidly reaching equilibrium conversion and up to 90% selectivity.
Other primary alcohols form the corresponding esters, while diols
formed the corresponding cyclic ethers and oligomers
Platinum-promoted Ga/Al₂O₃ as highly active, selective, and stable catalyst for the dehydrogenation of propane
A novel catalyst material for the selective dehydrogenation of propane is presented. The catalyst consists of 1000 ppm Pt, 3 wt% Ga, and 0.25 wt% K supported on alumina. We observed a synergy between Ga and Pt, resulting in a highly active and stable catalyst. Additionally, we propose a bifunctional active phase, in which coordinately unsaturated Ga3+ species are the active species and where Pt functions as a promoter