Figure 6.

Shapes of CeO₂ nanoparticles in the presence of dissociative (A) and molecular (B) water. Red, blue and green represent the {111}, {110}, and {100} CeO₂ surfaces, respectively. The shapes of the nanoparticles are generated at a water partial pressure of 1 bar and 298 K. Each shape is characterized by a ratio of surfaces defined in numerical percentage ({100}:{110}:{111}). There is also a set of labels, H (hydrated surface) and B (bare surface), which determine whether the corresponding surface has water adsorbed on it or not.