Engineering preformed cobalt-doped platinum nanocatalysts for ultraselective hydrogenation.

摘要: Bimetallic heterostructures are used as industrial catalysts for many important transformations. However, conventional primarily prepared in cost-effective manners without much appreciation metal size control and metal−metal interaction. By employing recent nanotechnology, Pt nanocrystals with tailored sizes can be decorated Co atoms a controlled manner colloid solution preformed nanocatalysts before they applied on support materials. Thus, we show that the terminal C═O hydrogenation achieved high activity, while undesirable of C═C group totally suppressed selective α,β-unsaturated aldehydes to unsaturated alcohols, when within critical range used. This is through blockage unselective low coordination sites optimization electronic influence nanoparticle appropriate by decoration. work clearly demonstrates advantag...