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Au was loaded (1wt.%) on different commercial oxide supports (CuO, Fe2O3, La2O3, MgO, NiO, Y2O3) by a double impregnation method (DIM). Samples were characterised by N2 adsorption at −196°C, scanning electron microscopy, high-resolution transmission electron microscopy, selected area electron diffraction, energy dispersive X-ray spectrometry, high-angle annular dark-field imaging (Z-contrast), X-ray...
Gold nanoparticles were supported on multi-walled carbon nanotubes (MWCNTs) by different methods and tested in the selective oxidation of glycerol under basic conditions, with the main purpose of evaluating the effect of the preparation technique on the activity and selectivity. The catalytic performances largely depended on the gold crystallite size. The sol immobilization method was the most suitable...
Single-crystalline gold nanoplates and also nanobelts, with {111} crystallographic facets and size length longer than 20μm, are synthesized in large scale by reduction of HAuCl 4 in lyotropic liquid crystal phases. Such flat products can be obtained from different systems including hexagonal or lamellar phases made of P123 (EO 20 PO 70 EO 20 ) where different ionic...
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