Fig. 3: Time-resolved reduction of PtAl.
From: Pt nanoparticles breathe and reversibly detach from Al2O3 in hydrogen

Time-evolution of (a) XRD and (b) PDF patterns of PtAl during the isothermal reduction in H2/Ar flow at 150 °C. Time evolution (yellow to blue) of difference (c) XRD and (d) PDF patterns obtained by subtracting the last pattern before H2 was admitted. The entire process takes place in 40 s.