Figure 5.

a) Translational velocity of active colloids prepared by PVD to platinum thicknesses of 2.9, 5.3, 7.7, and 10 nm and translational velocities of active colloids prepared by solution growth of platinum to thicknesses of 0.42, 0.50, 0.87, 1.44, 1.72, and 2.65 nm. b) Rotational diffusion of active colloids prepared by PVD to platinum thicknesses of 2.9, 5.3, 7.7, and 10 nm (red) and rotational diffusion of active colloids prepared by solution growth of platinum to thicknesses of 0.42, 0.50, 0.87, 1.44, 1.72, and 2.65 nm (blue). c) Histogram of relative velocity frequency at platinum thickness of 10 and 3.46 nm for PVD (red) and solution grown (blue) platinum. d) Reaction rate of decomposition of H₂O₂ per colloid active surface area for active Janus colloids prepared in solution (Sol) and by vapor deposition (PVD).