Figure 4.

Characterisation of bimetallic silver-chromium alloy nanoparticles. (A) UV-Vis absorbance spectrum showing an absorption peak at 479 nm. The spectrum for pure silver nanoparticles is shown for comparison. (B) TEM image showing disperse nanoparticles 100 days post-synthesis (scale bar 100 nm), with inset particle diameter distribution. (C) AFM topography image in liquid showing disperse nanoparticles 100 days post-synthesis (scale bar 150 nm), with inset particle height distribution.