Fig. 6. Ex situ investigations of the silver–gold nanoparticles. (a) Representative TEM image and (b) size distribution of the alloyed silver–gold nanoparticles. An aliquot was taken at the end of the experiment (157 min). (c) EDS spectrum of the inset area, containing a single silver–gold nanoparticle, taken after 157 min synthesis time. In this plot, * denotes peaks of Cu from the copper TEM grid. (d) Time evolution of the aggregation parameter SGC during the synthesis of silver–gold nanoparticles, showing that the amount of AgAu nanoparticles is increasing in the system while the byproduct phase is constant. (e) XRD data and representative Rietveld refinement of AgAu nanoparticles after 157 min during SAXS synthesis. Miller indices of the AgAu phase and a small peak of the synthesis byproduct AgCl are indicated. (f) UV/Vis spectrum of AgAu nanoparticles, taken after 157 min synthesis time.
