Viola, Arnaud published the artcileOn the importance of the crystalline surface structure on the catalytic activity and stability of tailored unsupported cobalt nanoparticles for the solvent-free acceptor-less alcohol dehydrogenation, Application of n-Octanol, the main research area is surface structure dehydrogenation catalysts cobalt nanoparticle; Acceptorless dehydrogenation of alcohols; Cobalt; Molecular hydrogen; Nanoparticles; PM-IRRAS.
Unsupported nanoparticles are now recognized as model catalysts to evaluate the intrinsic activity of metal particles, irresp. of that of the support. Co nanoparticles with different morphologies, rods, diabolos and cubes have been prepared by the polyol process and tested for the acceptorless catalytic dehydrogenation of alcs. under solvent-free conditions. Rods crystallize with the pure hcp. structure, diabolos with a mixture of hcp. and fcc. phases, while the cubes crystallize in a complex mixture of hcp., fcc. and ε-Co phases. All the cobalt particles are found to be highly selective towards the oxidation of a model secondary alc., octan-2-ol, into the corresponding ketone while no significant activity is found with octan-1-ol. Our results show the strong influence of particle shape on the activity and catalytic stability of the catalysts: Co nanorods display the highest conversion (85%), selectivity (95%) and recyclability compared to Co diabolos and Co cubes. We correlate the nanorods excellent stability with a strong binding of carboxylate ligands on their {1 1 2̅ 0} facets, preserving their crystalline superficial structure, as evidenced by phase modulation IR reflection absorption spectroscopy.
Journal of Colloid and Interface Science published new progress about Crystallinity. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Application of n-Octanol.
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts