Core-Shell Nanocatalysts Obtained in Reverse Micelles: Structural and Kinetic Aspects

Figure 1

Histograms represent the number of particles with a given percentage of the faster metal (Au) in each layer, from the nanoparticle core to the surface for two different couples of metals. (a) Reduction rate ratio and metal salt concentration metal ions in a micelle; (b) reduction rate ratio and concentration ions; (c) and ; (d) and ; (e) and ; (f) and ions. Scheme color: blue (0%–45% of Au), grey (45%–55% of Au), and red (55%–100% of Au). Less red means less Au (faster metal). Circles in each histogram represent nanoparticle structure in concentric layers, keeping the same color scheme. Surfactant film flexibility (, ).