Fig. 2. Small-angle X-ray scattering intensity profiles for the Ag, Ag@Au and Ag@Pt NPs/CNF catalysts analyzed by considering the existence of (a) polydispersed spherical particles only (the fitted curves do not reproduce the experimental data for Q values lower than 0.2 nm−1, dotted line) and, (b) isolated nanoparticles together with small nanoparticles aggregates of mass-fractal morphology. Empty symbols are experimental data and black solid lines are the fitting results. The curves are vertically shifted (Ag@Au × 5 and Ag@Pt × 25) so that each system can be clearly observed.
