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Two Cu/SiO2 methanol synthesis catalysts were synthesized, one via precipitation and one via impregnation. The copper particle size distribution and local copper weight loading were similar for both catalysts. Electron tomography revealed for the precipitated catalyst a plate-like silica structure with copper particles partially entrapped, whereas for the impregnated catalyst the copper particles...
Control over the size and size distribution of supported nanoparticles is key to their efficient use in catalysis. In the preparation of nanoparticles by impregnation using nitrate precursors, the support pore diameter can be used to influence the average crystallite size. However, the particle size distributions obtained via this method are generally broad and the dispersions relatively low. Higher...
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