Figure 3

HRTEM images of (a) TiCl₄ treated and (b) TiO_x treated SnO₂ nanoparticles. (c) EDX spectra confirming the presence of constituent elements of TiO₂ when selectively done on the TiO₂ nanoparticles covering the SnO₂ nanoparticles, the presence of Cu and C is due to the grid used as sample holder.