Structure and Role of a Ga-Promoter in Ni-Based Catalysts for the Selective Hydrogenation of CO to Methanol.

Supported, bimetallic catalysts have shown great promise for the selective hydrogenation of CO to methanol. In this study, we decipher the catalytically active structure of Ni-Ga-based catalysts. To this end, model Ni-Ga-based catalysts, with varying Ni:Ga ratios, were prepared by a surface organometallic chemistry approach.

Nature of GaO Shells Grown on Silica by Atomic Layer Deposition.

Gallia-based shells with a thickness varying from a submonolayer to ca. 2.5 nm were prepared by atomic layer deposition (ALD) using trimethylgallium, ozone, and partially dehydroxylated silica, followed by calcination at 500 °C.